CVE-2015-4205 : Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial

Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID CSCut19959.

Published 2015-06-23 14:59:03

Updated 2025-04-12 10:46:41

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2015-4205

Cisco » Ios Xr » Version: 5.3.1
cpe:2.3:o:cisco:ios_xr:5.3.1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asr 9001 » Version: N/A
When used together with: Cisco » Asr 9006 » Version: N/A
When used together with: Cisco » Asr 9010 » Version: N/A
When used together with: Cisco » Asr 9904 » Version: N/A
When used together with: Cisco » Asr 9912 » Version: N/A
When used together with: Cisco » Asr 9922 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2015-4205

EPSS FAQ

0.70%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 70 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2015-4205

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.7	MEDIUM	AV:A/AC:M/Au:N/C:N/I:N/A:C	5.5	6.9	NIST
Access Vector: Adjacent Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete

CWE ids for CVE-2015-4205

CWE-399

Assigned by: nvd@nist.gov (Primary)

References for CVE-2015-4205

http://tools.cisco.com/security/center/viewAlert.x?alertId=39455

Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers Denial of Service Vulnerability
Vendor Advisory
http://www.securitytracker.com/id/1032691

Cisco ASR 9000 Routers IEEE 802.3x Parsing Flaw Lets Remote Users Deny Service - SecurityTracker
Third Party Advisory;VDB Entry
http://www.securityfocus.com/bid/75352

Cisco IOS XR Software CVE-2015-4205 Denial of Service Vulnerability
Third Party Advisory;VDB Entry

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Vulnerability Details : CVE-2015-4205

Products affected by CVE-2015-4205

Exploit prediction scoring system (EPSS) score for CVE-2015-4205

CVSS scores for CVE-2015-4205

CWE ids for CVE-2015-4205

References for CVE-2015-4205