CVE-2026-20025

MEDIUM EPSS 6.0%
Published Mar 4, 20263mo ago · Modified Jun 5, 20263w ago
6.8 CVSS 3.1
Medium
Find Similar
Published Mar 4, 2026 3mo ago
Last Modified Jun 5, 2026 3w ago

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.

CVSS Details

Base Score
6.8
Exploitability
2.3
Impact
4.0
Vector string
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
6.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 10

VendorProductVersionRange
ciscofirepower_threat_defense_software*≥6.4.0  –  <7.0.9
ciscofirepower_threat_defense_software*≥7.1.0  –  <7.2.11
ciscofirepower_threat_defense_software*≥7.3.0  –  <7.4.3
ciscofirepower_threat_defense_software*≥7.6.0  –  <7.6.4
ciscofirepower_threat_defense_software*≥7.7.0  –  <7.7.11
ciscoadaptive_security_appliance_software*≥9.12.1  –  <9.16.4.85
ciscoadaptive_security_appliance_software*≥9.17.1  –  <9.18.4.66
ciscoadaptive_security_appliance_software*≥9.19.1  –  <9.20.4
ciscoadaptive_security_appliance_software*≥9.22.1.1  –  <9.22.2.4
ciscoadaptive_security_appliance_software*≥9.23.1  –  <9.23.1.7

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.