CVE-2025-20333

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:7.6.0:*:*:*:*:*:*:*

History

26 Sep 2025, 14:08

Type Values Removed Values Added
References () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-z5xP8EUB - () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-z5xP8EUB - Vendor Advisory
References () https://sec.cloudapps.cisco.com/security/center/resources/asa_ftd_continued_attacks - () https://sec.cloudapps.cisco.com/security/center/resources/asa_ftd_continued_attacks - Vendor Advisory
CPE cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:7.6.0:*:*:*:*:*:*:*
First Time Cisco firepower Threat Defense
Cisco
Cisco adaptive Security Appliance Software

25 Sep 2025, 18:15

Type Values Removed Values Added
References
  • () https://sec.cloudapps.cisco.com/security/center/resources/asa_ftd_continued_attacks -

25 Sep 2025, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-09-25 16:15

Updated : 2025-09-26 14:08


NVD link : CVE-2025-20333

Mitre link : CVE-2025-20333

CVE.ORG link : CVE-2025-20333


JSON object : View

Products Affected

cisco

  • firepower_threat_defense
  • adaptive_security_appliance_software
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')