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Advisory severityMedium6.5Cisco

Medium [CVE-2026-20016 +3] Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Authenticated Command Injection Vulnerabilities

This medium-severity Cisco advisory covers CVE-2026-20016 and CVE-2026-20017 and 2 more CVEs; related products: Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.3, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.2.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 4 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

cisco-sa-ftd-cmd-inj-mTzGZexf Source published Source updated

VulniPulse record published

CVE-2026-20016CVE-2026-20017CVE-2026-20063CVE-2026-20064
Related products & platforms
CiscoFirewallASA / Firepower
Open source advisory

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Summary

Multiple vulnerabilities in the CLI feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to cause a device to execute commands with elevated privileges or reload unexpectedly, resulting in a denial of service (DoS) condition.

For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities.

There are no workarounds that address these vulnerabilities. This advisory is part …

Affected products named by the advisory: Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.1; Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.3; Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.2; Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.4; and 4 more.

Affected versions
  • Scope: CVE-2026-20017, CVE-2026-20063, CVE-2026-20064: At the time of publication, these vulnerabilities affected Cisco Secure FTD Software, regardless of device configuration.

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Mitigation checklist

Workaround status
  • There are no workarounds that address these vulnerabilities.

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Discussion(0)

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