9.9

CVE-2025-20333

Warnung
Medienbericht

A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code on an affected device.

 This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker with valid VPN user credentials could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of the affected device.

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Adaptive Security Appliance Software Version >= 9.12 < 9.12.4.72
Cisco ≫ Adaptive Security Appliance Software Version >= 9.14 < 9.14.4.28
Cisco ≫ Adaptive Security Appliance Software Version >= 9.16 < 9.16.4.85
Cisco ≫ Adaptive Security Appliance Software Version >= 9.17.0 < 9.17.1.45
Cisco ≫ Adaptive Security Appliance Software Version >= 9.18 < 9.18.4.47
Cisco ≫ Adaptive Security Appliance Software Version >= 9.19 < 9.19.1.37
Cisco ≫ Adaptive Security Appliance Software Version >= 9.20 < 9.20.3.7
Cisco ≫ Adaptive Security Appliance Software Version >= 9.22 < 9.22.1.3
Cisco ≫ Firepower Threat Defense Version >= 7.0.0 < 7.0.8.1
Cisco ≫ Firepower Threat Defense Version >= 7.1.0 < 7.2.9
Cisco ≫ Firepower Threat Defense Version >= 7.3.0 < 7.4.2.4
Cisco ≫ Firepower Threat Defense Version7.6.0

25.09.2025: CISA Known Exploited Vulnerabilities (KEV) Catalog

Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow Vulnerability

Schwachstelle

Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Software VPN Web Server contain a buffer overflow vulnerability that allows for remote code execution. This vulnerability could be chained with CVE-2025-20362.

Beschreibung

The KEV due date refers to the deadline by which FCEB agencies are expected to review and begin implementing the guidance outlined in Emergency Directive (ED) 25-03 (URL listed below in Notes). Agencies must follow the mitigation steps provided by CISA (URL listed below in Notes) and vendor’s instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.03% 0.767
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@cisco.com 9.9 3.1 6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.