Cisco Email Gateway Zero-Day Gives Remote Attackers Root Control
Cisco is warning that attackers are exploiting a critical Secure Email Gateway zero-day to execute commands as root without authentication. Organizations should isolate management interfaces, apply Cisco’s remediation...
State-Backed Hackers Exploit Cisco Firewall Flaws for Root Access and Malware Deployment
Attackers are actively abusing two Cisco Secure Firewall Management Center vulnerabilities, including a maximum-severity authentication bypass. Cisco says state-sponsored operators and a ransomware affiliate have used the flaws...
Cisco Rushes Fixes for Near-Maximum-Severity Flaws in Catalyst SD-WAN
Cisco has patched five vulnerabilities in Catalyst SD-WAN Software, three of them scoring 9.9 out of 10 on the CVSS scale. There is no evidence of active exploitation...
Hard-Coded Password in Cisco’s Firewall Manager Is Being Actively Exploited, CISA Warns
CISA has issued an urgent warning about CVE-2026-20316, a hard-coded credential flaw in Cisco Secure Firewall Management Center that attackers are already exploiting. The bug lets unauthenticated intruders...
State-Sponsored Hackers Exploit Cisco Catalyst SD-WAN Manager Zero-Day to Gain Root Access
A state-sponsored threat actor exploited zero-day CVE-2026-20245 in Cisco Catalyst SD-WAN Manager to gain root access via a malicious CSV upload. The multi-phase intrusion also leveraged two CVSS...
CVSS 9.1: Critical Cisco ISE Vulnerabilities Enable Remote Code Execution and Unauthenticated Data Theft
Cisco has disclosed two critical vulnerabilities in its Identity Services Engine (ISE) — CVE-2026-20181 (RCE, CVSS 9.1) and CVE-2026-20190 (unauthenticated information disclosure) — affecting all ISE and ISE-PIC...
CVE-2026-20262: Cisco Catalyst SD-WAN vManage Zero-Day Actively Exploited in Enterprise Attacks
Cisco has confirmed active zero-day exploitation of CVE-2026-20262, an arbitrary-file-write vulnerability in Catalyst SD-WAN Manager (vManage) that allows attackers to deploy web shells and escalate to root. No...
State-Sponsored UAT-4356 Deploys FIRESTARTER Backdoor on Cisco Firepower Devices via Chained N-Day Vulnerabilities
Cisco Talos has uncovered an active espionage campaign by state-sponsored group UAT-4356, which chains two Cisco Firepower FXOS vulnerabilities (CVE-2025-20333 and CVE-2025-20362) to deploy the FIRESTARTER backdoor —...