VIR Vulnerability Intelligence Relay

CVE-2026-20023

medium
Published 2026-03-04 · Modified 2026-05-04
CVSS v3
6.5
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
VIR risk
6.5

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.

Predictions

Exploit likelihood
65%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Application impact
VendorProductVersionsFixed
cisco ciscofirepower_threat_defense_software6.4.0
cisco ciscofirepower_threat_defense_software6.4.0.1
cisco ciscofirepower_threat_defense_software6.4.0.2
cisco ciscofirepower_threat_defense_software6.4.0.3
cisco ciscofirepower_threat_defense_software6.4.0.4
cisco ciscofirepower_threat_defense_software6.4.0.5
cisco ciscofirepower_threat_defense_software6.4.0.6
cisco ciscofirepower_threat_defense_software6.4.0.7
cisco ciscofirepower_threat_defense_software6.4.0.8
cisco ciscofirepower_threat_defense_software6.4.0.9
cisco ciscofirepower_threat_defense_software6.4.0.10
cisco ciscofirepower_threat_defense_software6.4.0.11
cisco ciscofirepower_threat_defense_software6.4.0.12
cisco ciscofirepower_threat_defense_software6.4.0.13
cisco ciscofirepower_threat_defense_software6.4.0.14
cisco ciscofirepower_threat_defense_software6.4.0.15
cisco ciscofirepower_threat_defense_software6.4.0.16
cisco ciscofirepower_threat_defense_software6.4.0.17
cisco ciscofirepower_threat_defense_software6.4.0.18
cisco ciscofirepower_threat_defense_software7.0.0
cisco ciscofirepower_threat_defense_software7.0.0.1
cisco ciscofirepower_threat_defense_software7.0.1
cisco ciscofirepower_threat_defense_software7.0.1.1
cisco ciscofirepower_threat_defense_software7.0.2
cisco ciscofirepower_threat_defense_software7.0.2.1
cisco ciscofirepower_threat_defense_software7.0.3
cisco ciscofirepower_threat_defense_software7.0.4
cisco ciscofirepower_threat_defense_software7.0.5
cisco ciscofirepower_threat_defense_software7.0.6
cisco ciscofirepower_threat_defense_software7.0.6.1
cisco ciscofirepower_threat_defense_software7.0.6.2
cisco ciscofirepower_threat_defense_software7.0.6.3
cisco ciscofirepower_threat_defense_software7.0.7
cisco ciscofirepower_threat_defense_software7.0.8
cisco ciscofirepower_threat_defense_software7.0.8.1
cisco ciscofirepower_threat_defense_software7.1.0
cisco ciscofirepower_threat_defense_software7.1.0.1
cisco ciscofirepower_threat_defense_software7.1.0.2
cisco ciscofirepower_threat_defense_software7.1.0.3
cisco ciscofirepower_threat_defense_software7.2.0
cisco ciscofirepower_threat_defense_software7.2.0.1
cisco ciscofirepower_threat_defense_software7.2.1
cisco ciscofirepower_threat_defense_software7.2.2
cisco ciscofirepower_threat_defense_software7.2.3
cisco ciscofirepower_threat_defense_software7.2.4
cisco ciscofirepower_threat_defense_software7.2.4.1
cisco ciscofirepower_threat_defense_software7.2.5
cisco ciscofirepower_threat_defense_software7.2.5.1
cisco ciscofirepower_threat_defense_software7.2.5.2
cisco ciscofirepower_threat_defense_software7.2.6
cisco ciscofirepower_threat_defense_software7.2.7
cisco ciscofirepower_threat_defense_software7.2.8
cisco ciscofirepower_threat_defense_software7.2.8.1
cisco ciscofirepower_threat_defense_software7.2.9
cisco ciscofirepower_threat_defense_software7.2.10
cisco ciscofirepower_threat_defense_software7.2.10.2
cisco ciscofirepower_threat_defense_software7.3.0
cisco ciscofirepower_threat_defense_software7.3.1
cisco ciscofirepower_threat_defense_software7.3.1.1
cisco ciscofirepower_threat_defense_software7.3.1.2
cisco ciscofirepower_threat_defense_software7.4.0
cisco ciscofirepower_threat_defense_software7.4.1
cisco ciscofirepower_threat_defense_software7.4.1.1
cisco ciscofirepower_threat_defense_software7.4.2
cisco ciscofirepower_threat_defense_software7.4.2.1
cisco ciscofirepower_threat_defense_software7.4.2.2
cisco ciscofirepower_threat_defense_software7.4.2.3
cisco ciscofirepower_threat_defense_software7.4.2.4
cisco ciscofirepower_threat_defense_software7.4.3
cisco ciscofirepower_threat_defense_software7.6.0
cisco ciscofirepower_threat_defense_software7.6.1
cisco ciscofirepower_threat_defense_software7.6.2
cisco ciscofirepower_threat_defense_software7.6.2.1
cisco ciscofirepower_threat_defense_software7.7.0
cisco ciscofirepower_threat_defense_software7.7.10.1

References

CWEs

CWE-787

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Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.