Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software

CVE-2026-20023
MEDIUM 6.1

At a glance

Source
NVD
EPSS
EPSS 0.15 % Β· percentile 4 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Analyzed

Description

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to corrupt memory on an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to memory corruption when parsing OSPF protocol packets. An attacker could exploit this vulnerability by sending crafted OSPF packets to an affected device. A successful exploit could allow the attacker to cause memory corruption causing the affected device to reboot, resulting in a DoS condition.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HNVD Β· psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD Β· nvd@nist.gov (Primary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco Β· Cisco Secure Firewall Adaptive Security Appliance (ASA) Softwareaffected 9.12.1 ; affected 9.12.1.2 ; affected 9.12.1.3 ; affected 9.12.2 ; affected 9.12.2.4 ; affected 9.12.2.5
Cisco Β· Cisco Secure Firewall Threat Defense (FTD) Softwareaffected 6.4.0 ; affected 6.4.0.1 ; affected 6.4.0.3 ; affected 6.4.0.2 ; affected 6.4.0.4 ; affected 6.4.0.5

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST β€” attribution requested
ENISA EUVDENISA β€” reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain β€” this product uses data from the NVD API but is not endorsed or certified by the NVD