CVE-2021-34735 : Multiple vulnerabilities in the Cisco ATA 190 Series Analog Telephone Adapter So

Multiple vulnerabilities in the Cisco ATA 190 Series Analog Telephone Adapter Software could allow an attacker to perform a command injection attack resulting in remote code execution or cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Published 2021-10-06 20:15:10

Updated 2023-07-07 19:12:33

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Execute codeDenial of service

Products affected by CVE-2021-34735

Cisco » Ata 190 Firmware » Version: N/A
cpe:2.3:o:cisco:ata_190_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ata 190 » Version: N/A
Cisco » Ata 191 Firmware » Version: N/A
cpe:2.3:o:cisco:ata_191_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ata 191 » Version: N/A
Cisco » Ata 192 Firmware » Version: N/A
cpe:2.3:o:cisco:ata_192_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ata 192 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-34735

EPSS FAQ

0.17%

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

~ 55 %

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

CVSS scores for CVE-2021-34735

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
8.8	HIGH	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	Cisco Systems, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-34735

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Assigned by: nvd@nist.gov (Primary)
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2021-34735

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multivuln-A4J57F3

Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities
Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-34735

Products affected by CVE-2021-34735

Exploit prediction scoring system (EPSS) score for CVE-2021-34735

CVSS scores for CVE-2021-34735

CWE ids for CVE-2021-34735

References for CVE-2021-34735