PT-2025-33334 · Cisco · Cisco Secure Firewall Threat Defense (Ftd)+2

Published 2025-08-14 · Updated 2025-08-15 · CVE-2025-20263

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software (affected versions not specified)

Description: A vulnerability exists in the web services interface of the software that could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected system. This issue is due to insufficient boundary checks for specific data provided to the web services interface. An attacker could exploit this by sending a crafted HTTP request to the affected system, potentially causing a buffer overflow condition and leading to a denial of service (DoS) condition, resulting in a system reload.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-680

Related Identifiers

BDU:2025-10357

CVE-2025-20263

Affected Products

Cisco Asa

Cisco Secure Firewall Asa

Cisco Secure Firewall Threat Defense (Ftd)

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2025-20263 · Security Note
• https://bdu.fstec.ru/vul/2025-10357 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-buffer-overflow-PyRUhWBC · Vendor Advisory
• https://twitter.com/CVEnew/status/1956390323761848417 · Twitter Post
• https://t.me/CVEtracker/30008 · Telegram Post
• https://t.me/true_secator/7332 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1956140958736593085 · Twitter Post
• https://twitter.com/0dayPublishing/status/1956045538773569878 · Twitter Post
• https://twitter.com/CveFindCom/status/1956040889354129805 · Twitter Post