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CVE-2026-20025

Affected software2 products, listed below
Severity6.8 Medium CVSS 3.1
WeaknessInteger overflow (CWE-190)
Published4 Mar 2026
Updated11 Aug 2026

Description

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF secret key. This vulnerability is due to insufficient input validation when processing OSPF link-state update (LSU) packets. An attacker could exploit this vulnerability by sending crafted OSPF LSU packets. A successful exploit could allow the attacker to corrupt the heap, causing the device to reload, resulting in a DoS condition.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.18% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review automated Upstream data
  • Record active
Decided by The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding This CVE names only products the Waratek agent cannot be installed into (cisco/secure_firewall_threat_defense). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

Affected software and releases

Products and versions

2 products, 10 version entries
SourceVendorProductSchemeAffected versions
nvd cisco adaptive security appliance software generic ≥ 9.12.1 and < 9.16.4.85 · ≥ 9.17.1 and < 9.18.4.66 · ≥ 9.19.1 and < 9.20.4 · ≥ 9.22.1.1 and < 9.22.2.4 · ≥ 9.23.1 and < 9.23.1.7
nvd cisco secure firewall threat defense generic ≥ 6.4.0 and < 7.0.9 · ≥ 7.1.0 and < 7.2.11 · ≥ 7.3.0 and < 7.4.3 · ≥ 7.6.0 and < 7.6.4 · ≥ 7.7.0 and < 7.7.11

References

URLTags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ospf-ZH8PhbSW Vendor Advisory

Timeline

Published2026-03-04By the CVE Program.
NVD record modified2026-08-11NVD's own last-modified date for this record.