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Cisco » IOS » 12.1 * * * : Security Vulnerabilities

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2013-5472 20 DoS 2013-09-27 2013-09-30
7.1
None Remote Medium Not required None None Complete
The NTP implementation in Cisco IOS 12.0 through 12.4 and 15.0 through 15.1, and IOS XE 2.1 through 3.3, does not properly handle encapsulation of multicast NTP packets within MSDP SA messages, which allows remote attackers to cause a denial of service (device reload) by leveraging an MSDP peer relationship, aka Bug ID CSCuc81226.
2 CVE-2013-0149 DoS +Info 2013-08-05 2013-08-13
5.8
None Remote Medium Not required Partial None Partial
The OSPF implementation in Cisco IOS 12.0 through 12.4 and 15.0 through 15.3, IOS-XE 2.x through 3.9.xS, ASA and PIX 7.x through 9.1, FWSM, NX-OS, and StarOS before 14.0.50488 does not properly validate Link State Advertisement (LSA) type 1 packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service (routing disruption) or obtain sensitive packet information via a (1) unicast or (2) multicast packet, aka Bug IDs CSCug34485, CSCug34469, CSCug39762, CSCug63304, and CSCug39795.
3 CVE-2011-3280 399 DoS 2011-10-03 2017-08-28
7.8
None Remote Low Not required None None Complete
Memory leak in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (memory consumption or device reload) by sending crafted SIP packets to UDP port 5060, aka Bug ID CSCtj04672.
4 CVE-2011-3278 DoS 2011-10-03 2017-08-29
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload) by sending crafted SIP packets to UDP port 5060, aka Bug ID CSCti48483.
5 CVE-2011-3277 DoS 2011-10-03 2017-08-29
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload) by sending crafted H.323 packets to TCP port 1720, aka Bug ID CSCth11006.
6 CVE-2011-3276 DoS 2011-10-03 2012-05-14
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload or hang) by sending crafted SIP packets to TCP port 5060, aka Bug ID CSCso02147.
7 CVE-2011-0945 399 DoS 2011-10-03 2012-05-14
7.8
None Remote Low Not required None None Complete
Memory leak in the Data-link switching (aka DLSw) feature in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xS before 3.1.3S and 3.2.xS before 3.2.1S, when implemented over Fast Sequence Transport (FST), allows remote attackers to cause a denial of service (memory consumption and device reload or hang) via a crafted IP protocol 91 packet, aka Bug ID CSCth69364.
8 CVE-2010-2835 DoS 2010-09-23 2010-09-24
7.8
None Remote Low Not required None None Complete
Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x before 6.1(5), 7.0 before 7.0(2a)su3, 7.1su before 7.1(3b)su2, 7.1 before 7.1(5), and 8.0 before 8.0(1) allow remote attackers to cause a denial of service (device reload or voice-services outage) via a SIP REFER request with an invalid Refer-To header, aka Bug IDs CSCta20040 and CSCta31358.
9 CVE-2010-2834 DoS 2010-09-23 2010-09-24
7.8
None Remote Low Not required None None Complete
Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x before 6.1(5)SU1, 7.x before 7.1(5), and 8.0 before 8.0(2) allow remote attackers to cause a denial of service (device reload or voice-services outage) via crafted SIP registration traffic over UDP, aka Bug IDs CSCtf72678 and CSCtf14987.
10 CVE-2010-2833 DoS 2010-09-23 2010-09-24
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in the NAT for H.225.0 implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1 allows remote attackers to cause a denial of service (device reload) via transit traffic, aka Bug ID CSCtd86472.
11 CVE-2010-2832 DoS 2010-09-23 2010-09-24
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in the NAT for H.323 implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1 allows remote attackers to cause a denial of service (device reload) via transit traffic, aka Bug ID CSCtf91428.
12 CVE-2010-2831 DoS 2010-09-23 2010-09-24
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in the NAT for SIP implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1 allows remote attackers to cause a denial of service (device reload) via transit traffic on UDP port 5060, aka Bug ID CSCtf17624.
13 CVE-2009-5040 399 DoS 2011-01-07 2017-08-17
6.8
None Remote Low ??? None None Complete
CallManager Express (CME) on Cisco IOS before 15.0(1)XA allows remote authenticated users to cause a denial of service (device crash) by using an extension mobility (EM) phone to interact with the menu for SNR number changes, aka Bug ID CSCta63555.
14 CVE-2009-2873 DoS 2009-09-28 2009-10-01
7.1
None Remote Medium Not required None None Complete
Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via malformed packets, aka Bug ID CSCsx70889.
15 CVE-2009-2872 DoS 2009-09-28 2009-10-01
6.8
None Remote Low ??? None None Complete
Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.
16 CVE-2009-2863 287 Bypass 2009-09-28 2017-08-17
7.1
None Remote Medium Not required Complete None None
Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.
17 CVE-2009-0636 DoS 2009-03-27 2017-08-17
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in Cisco IOS 12.0 through 12.4, when SIP voice services are enabled, allows remote attackers to cause a denial of service (device crash) via a valid SIP message.
18 CVE-2009-0631 DoS 2009-03-27 2017-09-29
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in Cisco IOS 12.0 through 12.4, when configured with (1) IP Service Level Agreements (SLAs) Responder, (2) Session Initiation Protocol (SIP), (3) H.323 Annex E Call Signaling Transport, or (4) Media Gateway Control Protocol (MGCP) allows remote attackers to cause a denial of service (blocked input queue on the inbound interface) via a crafted UDP packet.
19 CVE-2009-0630 DoS Bypass 2009-03-27 2017-08-17
7.1
None Remote Medium Not required None None Complete
The (1) Cisco Unified Communications Manager Express; (2) SIP Gateway Signaling Support Over Transport Layer Security (TLS) Transport; (3) Secure Signaling and Media Encryption; (4) Blocks Extensible Exchange Protocol (BEEP); (5) Network Admission Control HTTP Authentication Proxy; (6) Per-user URL Redirect for EAPoUDP, Dot1x, and MAC Authentication Bypass; (7) Distributed Director with HTTP Redirects; and (8) TCP DNS features in Cisco IOS 12.0 through 12.4 do not properly handle IP sockets, which allows remote attackers to cause a denial of service (outage or resource consumption) via a series of crafted TCP packets.
20 CVE-2008-4609 16 DoS 2008-10-20 2021-07-07
7.1
None Remote Medium Not required None None Complete
The TCP implementation in (1) Linux, (2) platforms based on BSD Unix, (3) Microsoft Windows, (4) Cisco products, and probably other operating systems allows remote attackers to cause a denial of service (connection queue exhaustion) via multiple vectors that manipulate information in the TCP state table, as demonstrated by sockstress.
21 CVE-2008-3821 79 XSS 2009-01-16 2018-10-11
4.3
None Remote Medium Not required None Partial None
Multiple cross-site scripting (XSS) vulnerabilities in the HTTP server in Cisco IOS 11.0 through 12.4 allow remote attackers to inject arbitrary web script or HTML via (1) the query string to the ping program or (2) unspecified other aspects of the URI.
22 CVE-2008-3809 DoS 2008-09-26 2022-06-02
7.1
None Remote Medium Not required None None Complete
Cisco IOS 12.0 through 12.4 on Gigabit Switch Router (GSR) devices (aka 12000 Series routers) allows remote attackers to cause a denial of service (device crash) via a malformed Protocol Independent Multicast (PIM) packet.
23 CVE-2008-3808 DoS 2008-09-26 2022-06-02
7.8
None Remote Low Not required None None Complete
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device reload) via a crafted Protocol Independent Multicast (PIM) packet.
24 CVE-2008-1153 DoS 2008-03-27 2017-09-29
7.1
None Remote Medium Not required None None Complete
Cisco IOS 12.1, 12.2, 12.3, and 12.4, with IPv4 UDP services and the IPv6 protocol enabled, allows remote attackers to cause a denial of service (device crash and possible blocked interface) via a crafted IPv6 packet to the device.
25 CVE-2007-5651 DoS 2007-10-23 2017-09-29
7.1
None Remote Medium Not required None None Complete
Unspecified vulnerability in the Extensible Authentication Protocol (EAP) implementation in Cisco IOS 12.3 and 12.4 on Cisco Access Points and 1310 Wireless Bridges (Wireless EAP devices), IOS 12.1 and 12.2 on Cisco switches (Wired EAP devices), and CatOS 6.x through 8.x on Cisco switches allows remote attackers to cause a denial of service (device reload) via a crafted EAP Response Identity packet.
26 CVE-2007-5381 119 Exec Code Overflow 2007-10-12 2017-07-29
9.3
None Remote Medium Not required Complete Complete Complete
Stack-based buffer overflow in the Line Printer Daemon (LPD) in Cisco IOS before 12.2(18)SXF11, 12.4(16a), and 12.4(2)T6 allow remote attackers to execute arbitrary code by setting a long hostname on the target system, then causing an error message to be printed, as demonstrated by a telnet session to the LPD from a source port other than 515.
27 CVE-2007-4430 20 DoS 2007-08-20 2011-05-18
5.0
None Remote Low Not required None None Partial
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.
28 CVE-2007-4295 Exec Code 2007-08-09 2017-09-29
6.8
None Remote Medium Not required Partial Partial Partial
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows remote attackers to execute arbitrary code via a malformed SIP packet, aka CSCsi80749.
29 CVE-2007-4293 DoS 2007-08-09 2017-09-29
7.1
None Remote Medium Not required None None Complete
Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device crash) via (1) "abnormal" MGCP messages, aka CSCsd81407; and (2) a large facsimile packet, aka CSCej20505.
30 CVE-2007-4292 DoS 2007-08-09 2017-09-29
9.3
None Remote Medium Not required Complete Complete Complete
Multiple memory leaks in Cisco IOS 12.0 through 12.4 allow remote attackers to cause a denial of service (device crash) via a malformed SIP packet, aka (1) CSCsf11855, (2) CSCeb21064, (3) CSCse40276, (4) CSCse68355, (5) CSCsf30058, (6) CSCsb24007, and (7) CSCsc60249.
31 CVE-2007-4291 DoS Mem. Corr. 2007-08-09 2017-09-29
7.1
None Remote Medium Not required None None Complete
Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service via (1) a malformed MGCP packet, which causes a device hang, aka CSCsf08998; a malformed H.323 packet, which causes a device crash, as identified by (2) CSCsi60004 with Proxy Unregistration and (3) CSCsg70474; and a malformed Real-time Transport Protocol (RTP) packet, which causes a device crash, as identified by (4) CSCse68138, related to VOIP RTP Lib, and (5) CSCse05642, related to I/O memory corruption.
32 CVE-2007-4286 119 DoS Exec Code Overflow 2007-08-09 2018-10-15
9.3
None Remote Medium Not required Complete Complete Complete
Buffer overflow in the Next Hop Resolution Protocol (NHRP) functionality in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (restart) and execute arbitrary code via a crafted NHRP packet.
33 CVE-2007-4285 DoS +Info 2007-08-09 2017-09-29
9.0
None Remote Low Not required Partial Partial Complete
Unspecified vulnerability in Cisco IOS and Cisco IOS XR 12.x up to 12.3, including some versions before 12.3(15) and 12.3(14)T, allows remote attackers to obtain sensitive information (partial packet contents) or cause a denial of service (router or component crash) via crafted IPv6 packets with a Type 0 routing header.
34 CVE-2007-2688 2007-05-16 2018-10-30
7.8
None Remote Low Not required None None Complete
The Cisco Intrusion Prevention System (IPS) and IOS with Firewall/IPS Feature Set do not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic.
35 CVE-2006-4650 Overflow Bypass 2006-09-09 2018-10-17
2.6
None Remote High Not required Partial None None
Cisco IOS 12.0, 12.1, and 12.2, when GRE IP tunneling is used and the RFC2784 compliance fixes are missing, does not verify the offset field of a GRE packet during decapsulation, which leads to an integer overflow that references data from incorrect memory locations, which allows remote attackers to inject crafted packets into the routing queue, possibly bypassing intended router ACLs.
36 CVE-2006-0485 Exec Code 2006-02-01 2017-10-11
4.6
None Local Low Not required Partial Partial Partial
The TCL shell in Cisco IOS 12.2(14)S before 12.2(14)S16, 12.2(18)S before 12.2(18)S11, and certain other releases before 25 January 2006 does not perform Authentication, Authorization, and Accounting (AAA) command authorization checks, which may allow local users to execute IOS EXEC commands that were prohibited via the AAA configuration, aka Bug ID CSCeh73049.
37 CVE-2006-0340 20 DoS 2006-01-21 2017-07-20
7.1
None Remote Medium Not required None None Complete
Unspecified vulnerability in Stack Group Bidding Protocol (SGBP) support in Cisco IOS 12.0 through 12.4 running on various Cisco products, when SGBP is enabled, allows remote attackers on the local network to cause a denial of service (device hang and network traffic loss) via a crafted UDP packet to port 9900.
38 CVE-2005-3481 Exec Code Overflow 2005-11-03 2017-10-11
9.3
None Remote Medium Not required Complete Complete Complete
Cisco IOS 12.0 to 12.4 might allow remote attackers to execute arbitrary code via a heap-based buffer overflow in system timers. NOTE: this issue does not correspond to a specific vulnerability, rather a general weakness that only increases the feasibility of exploitation of any vulnerabilities that might exist. Such design-level weaknesses normally are not included in CVE, so perhaps this issue should be REJECTed.
39 CVE-2005-1020 287 DoS 2005-05-02 2017-10-11
7.1
None Remote Medium Not required None None Complete
Secure Shell (SSH) 2 in Cisco IOS 12.0 through 12.3 allows remote attackers to cause a denial of service (device reload) (1) via a username that contains a domain name when using a TACACS+ server to authenticate, (2) when a new SSH session is in the login phase and a currently logged in user issues a send command, or (3) when IOS is logging messages and an SSH session is terminated while the server is sending data.
40 CVE-2005-0196 DoS 2005-05-02 2017-10-11
5.0
None Remote Low Not required None None Partial
Cisco IOS 12.0 through 12.3YL, with BGP enabled and running the bgp log-neighbor-changes command, allows remote attackers to cause a denial of service (device reload) via a malformed BGP packet.
41 CVE-2004-1775 2004-12-31 2017-07-11
5.0
None Remote Low Not required None Partial None
Cisco VACM (View-based Access Control MIB) for Catalyst Operating Software (CatOS) 5.5 and 6.1 and IOS 12.0 and 12.1 allows remote attackers to read and modify device configuration via the read-write community string.
42 CVE-2004-0054 DoS Exec Code 2004-02-17 2017-10-11
7.5
None Remote Low Not required Partial Partial Partial
Multiple vulnerabilities in the H.323 protocol implementation for Cisco IOS 11.3T through 12.2T allow remote attackers to cause a denial of service and possibly execute arbitrary code, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol.
43 CVE-2003-1398 200 DoS +Info 2003-12-31 2017-07-29
9.3
None Remote Medium Not required Complete Complete Complete
Cisco IOS 12.0 through 12.2, when IP routing is disabled, accepts false ICMP redirect messages, which allows remote attackers to cause a denial of service (network routing modification).
44 CVE-2003-0567 20 DoS 2003-08-18 2018-10-30
7.8
None Remote Low Not required None None Complete
Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full.
45 CVE-2002-2208 DoS 2002-12-31 2018-10-19
7.8
None Remote Low Not required None None Complete
Extended Interior Gateway Routing Protocol (EIGRP), as implemented in Cisco IOS 11.3 through 12.2 and other products, allows remote attackers to cause a denial of service (flood) by sending a large number of spoofed EIGRP neighbor announcements, which results in an ARP storm on the local network.
46 CVE-2002-2053 DoS 2002-12-31 2008-09-05
5.0
None Remote Low Not required None None Partial
The design of the Hot Standby Routing Protocol (HSRP), as implemented on Cisco IOS 12.1, when using IRPAS, allows remote attackers to cause a denial of service (CPU consumption) via a router with the same IP address as the interface on which HSRP is running, which causes a loop.
47 CVE-2002-1768 DoS 2002-12-31 2017-07-11
5.0
None Remote Low Not required None None Partial
Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.
48 CVE-2002-1706 2002-12-31 2017-07-11
5.0
None Remote Low Not required None Partial None
Cisco IOS software 11.3 through 12.2 running on Cisco uBR7200 and uBR7100 series Universal Broadband Routers allows remote attackers to modify Data Over Cable Service Interface Specification (DOCSIS) settings via a DOCSIS file without a Message Integrity Check (MIC) signature, which is approved by the router.
49 CVE-2002-0339 2002-06-25 2008-09-05
5.0
None Remote Low Not required None Partial None
Cisco IOS 11.1CC through 12.2 with Cisco Express Forwarding (CEF) enabled includes portions of previous packets in the padding of a MAC level packet when the MAC packet's length is less than the IP level packet length.
50 CVE-2001-1434 2001-02-28 2017-07-11
5.0
None Remote Low Not required Partial None None
Cisco IOS 12.0(5)XU through 12.1(2) allows remote attackers to read system administration and topology information via an "snmp-server host" command, which creates a readable "community" community string if one has not been previously created.
Total number of vulnerabilities : 55   Page : 1 (This Page)2
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