CVE-2025-20135
Cisco Adaptive Security Appliance and Firepower Threat Defense Software DHCP Denial of Service Vulnerability
En bref
- Source
- NVD
- EPSS
- EPSS 0.20 % · centile 10 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- cisco
- Statut NVD
- Deferred
Description
A vulnerability in the DHCP client functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to exhaust available memory. This vulnerability is due to improper validation of incoming DHCP packets. An attacker could exploit this vulnerability by repeatedly sending crafted DHCPv4 packets to an affected device. A successful exploit could allow the attacker to exhaust available memory, which would affect availability of services and prevent new processes from starting, resulting in a Denial of Service (DoS) condition that would require a manual reboot. Note: On Cisco Secure FTD Software, this vulnerability does not affect management interfaces.
Faiblesses (CWE)
- CWE-401 — Mémoire non libérée après sa durée de vie utile
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | cisco |
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · psirt@cisco.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2025-24853
- GCVE · GCVE-0-2025-20135
Produits affectés
| Produit | Versions |
|---|---|
| Cisco · Cisco Adaptive Security Appliance (ASA) Software | affected 9.12.3 ; affected 9.8.3 ; affected 9.12.1 ; affected 9.8.1 ; affected 9.12.2 ; affected 9.8.2.45 |
| Cisco · Cisco Firepower Threat Defense Software | affected 6.2.3.14 ; affected 6.4.0.1 ; affected 6.2.3.7 ; affected 6.2.3 ; affected 6.4.0.2 ; affected 6.2.3.9 |
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 |