Signalis
sign in--:--:--UTC
CVEs

CVE-2025-20333

exploited in the wild☆ pin
CVSS
—
Reports
5
First seen
Sep 26, 2025
Last seen
May 11, 2026
Affected product

Cisco Secure Firewall ASA, Cisco Secure FTD

Associated actors

APT29 ×1ArcaneDoor ×1ByteToBreach ×1Chinese hacker groups ×1Clop ×1Contagious Interview ×1Elysium ×1Everest ×1FlexibleFerret ×1Gamaredon ×1Killnet ×1Nimbus Manticore ×1NoName057 ×1NoName057(16) ×1PlushDaemon ×1Rhadamanthys ×1Sandworm ×1Storm-1516 ×1Turla ×1UAC-0099 ×1

Recent reports

Critical

Cisco Secure Firewall ASA and FTD Buffer Overflow Vulnerability (CVE-2025-20333)

NICS TaiwanHigh

Cyber Brief November 2025: Operation Endgame, Sandworm Wipers, China AI Espionage

CERT-EU Threat IntelHigh

CERT-EU Cyber Brief September 2025 – Multi-Sector Threats Across Europe

CERT-EU Threat IntelCritical

Cisco Secure Firewall ASA and Secure FTD Buffer Overflow Vulnerability (CVE-2025-20333)

NICS TaiwanCritical

Multiple Vulnerabilities in Cisco Secure Firewall Products Being Exploited in the Wild

GovCERT.HK

This page shows data on a 7-day delay. Free accounts get the full delayed feed; real-time reports, indicators, and the API start at $29/mo.

Sign upSee plans