CVE-2022-20729: Cisco Firepower Threat Defense Software XML Injection Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-05-03 · updated 2026-08-11
Weakness: CWE-91

Description

A vulnerability in CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to inject XML into the command parser. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted input in commands. A successful exploit could allow the attacker to inject XML into the command parser, which could result in unexpected processing of the command and unexpected command output.

Affected products

Cisco Firepower Threat Defense Software: before 6.4.0.15; from 6.5.0 before 6.6.5.2; from 6.7.0 before 7.0.2 — fixed in 6.4.0.15, 6.6.5.2, 7.0.2

How to fix

Upgrade to a fixed version: Cisco Firepower Threat Defense Software 6.4.0.15, 6.6.5.2, 7.0.2. Check the vendor advisory for mitigations.

References

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