How severe is CVE-2022-20729?

CVE-2022-20729 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2022-20729 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-20729?

CVE-2022-20729 affects Cisco Firepower Threat Defense. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-20729?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-20729 published?

CVE-2022-20729 was published on 2022-05-03 and last updated on 2026-06-17.

CVE-2022-20729

CVE-2022-20729 is a medium-severity vulnerability in Cisco Firepower Threat Defense with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-91.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v2: 4.6
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-91
Affected product: Cisco Firepower Threat Defense
Published: 2022-05-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-20729?: 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.
How severe is CVE-2022-20729?: CVE-2022-20729 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2022-20729 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-20729?: CVE-2022-20729 affects Cisco Firepower Threat Defense. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-20729?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-20729 published?: CVE-2022-20729 was published on 2022-05-03 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-xmlinj-8GWjGzKe

Affected products (1)

cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Firepower Threat Defense

CVE-2021-44228 — Critical (CVSS 10.0): Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in…
CVE-2018-0101 — Critical (CVSS 10.0): A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA)…
CVE-2025-20333 — Critical (CVSS 9.9): A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco…
CVE-2024-20412 — Critical (CVSS 9.3): A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000, 2100, 3100, and 4200 Series…
CVE-2020-3187 — Critical (CVSS 9.1): A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower…
CVE-2025-20363 — Critical (CVSS 9.0): A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure…

All CVEs affecting Cisco Firepower Threat Defense →

Other CWE-91 (XML Injection) vulnerabilities

CVE-2021-4140 — Critical (CVSS 10.0): It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability…
CVE-2023-43187 — Critical (CVSS 9.8): A remote code execution (RCE) vulnerability in the xmlrpc.php endpoint of NodeBB Inc NodeBB forum software prior to…
CVE-2019-19450 — Critical (CVSS 9.8): paraparser in ReportLab before 3.5.31 allows remote code execution because start_unichar in paraparser.py evaluates…
CVE-2021-37154 — Critical (CVSS 9.8): In ForgeRock Access Management (AM) before 7.0.2, the SAML2 implementation allows XML injection, potentially enabling a…
CVE-2020-29128 — Critical (CVSS 9.8): petl before 1.68, in some configurations, allows resolution of entities in an XML document.
CVE-2020-25216 — Critical (CVSS 9.8): yWorks yEd Desktop before 3.20.1 allows code execution via an XSL Transformation when using an XML file in conjunction…

Browse all CWE-91 (XML Injection) vulnerabilities →