Riskcovery

CVE-2026-20022

State
Published
Severity
6.1 Medium
Published
Mar 4, 2026
Updated
Mar 4, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition when OSPF canonicalization debug is enabled by using the command debug ip ospf canon. This vulnerability is due to insufficient input validation when processing OSPF LSU packets. An attacker could exploit this vulnerability by sending crafted unauthenticated OSPF packets. A successful exploit could allow the attacker to write to memory outside of the packet data, causing the device to reload, resulting in a DoS condition.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-823 Use of Out-of-range Pointer Offset

Affected Products

ProductVersions
Cisco Secure Firewall Adaptive Security Appliance (ASA) SoftwareCisco
  • 9.12.1Affected
  • 9.12.1.2Affected
  • 9.12.1.3Affected
  • 9.12.2Affected
  • 9.12.2.4Affected
  • 9.12.2.5Affected
  • 9.12.2.9Affected
  • 9.12.3Affected
  • 9.12.3.2Affected
  • 9.12.3.7Affected
  • 9.12.4Affected
  • 9.12.3.12Affected
  • 9.12.3.9Affected
  • 9.12.2.1Affected
  • 9.12.4.2Affected
  • 9.12.4.4Affected
  • 9.12.4.7Affected
  • 9.12.4.10Affected
  • 9.12.4.13Affected
  • 9.12.4.8Affected
  • 9.12.4.18Affected
  • 9.12.4.24Affected
  • 9.12.4.26Affected
  • 9.12.4.29Affected
  • 9.12.4.30Affected
  • and 138 more versions
Cisco Secure Firewall Threat Defense (FTD) SoftwareCisco
  • 6.4.0Affected
  • 6.4.0.1Affected
  • 6.4.0.3Affected
  • 6.4.0.2Affected
  • 6.4.0.4Affected
  • 6.4.0.5Affected
  • 6.4.0.6Affected
  • 6.4.0.7Affected
  • 6.4.0.8Affected
  • 6.4.0.9Affected
  • 6.4.0.10Affected
  • 6.4.0.11Affected
  • 6.4.0.12Affected
  • 6.4.0.13Affected
  • 6.4.0.14Affected
  • 6.4.0.15Affected
  • 6.4.0.16Affected
  • 6.4.0.17Affected
  • 6.4.0.18Affected
  • 7.0.0Affected
  • 7.0.0.1Affected
  • 7.0.1Affected
  • 7.0.1.1Affected
  • 7.0.2Affected
  • 7.0.2.1Affected
  • and 51 more versions

References

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