Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities

published 2021-10-06 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21360

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.6%; EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

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.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-11-07)

Exploit prediction

2.61% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	9.0	AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

Cisco Cisco Analog Telephone Adaptor (ATA) Software

Classification

Weakness

CWE-770 Allocation of Resources Without Limits or Throttling
CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multivuln-A4J57F3
vendor-advisory

Sources

CVE List CVE-2021-34710
NVD CVE-2021-34710

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary