CVE-2026-20025
Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
MEDIUM 6.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.16 % · percentile 5 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-190 — Integer Overflow or Wraparound
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-9482
- GCVE · GCVE-0-2026-20025
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*≥ 6.4.0 < 7.0.9cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*≥ 7.1.0 < 7.2.11cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*≥ 7.3.0 < 7.4.3cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*≥ 7.6.0 < 7.6.4cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*≥ 7.7.0 < 7.7.11cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*≥ 9.12.1 < 9.16.4.85cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*≥ 9.17.1 < 9.18.4.66cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*≥ 9.19.1 < 9.20.4cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*≥ 9.22.1.1 < 9.22.2.4cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*≥ 9.23.1 < 9.23.1.7
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | affected 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 · Cisco Secure Firewall Threat Defense (FTD) Software | affected 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
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |