cisco
Cisco warns of max severity ISE zero-day exploited in attacks
Cisco has released security updates to address a maximum-severity Identity Services Engine vulnerability that attackers are actively exploiting in the wild. Cisco ISE is a centralized policy platform that IT administrators use to manage endpoints, users, and device access to network resources, often while enforcing Zero Trust security models. The security flaw (tracked as CVE-2026-76460) […]
Cisco patches Secure Email Gateway zero-day exploited in attacks
Cisco warned customers to patch a critical Secure Email Gateway zero-day security flaw that threat actors have been exploiting in attacks. “In September 2026, the Cisco PSIRT became aware of active exploitation of this vulnerability,” the company warned in a Monday security advisory. The security flaw (tracked as CVE-2026-76461) was found in the email parsing […]
Cisco FMC flaws exploited by ransomware gang, state-sponsored hackers
Cisco Talos says two recently patched Secure Firewall Management Center (FMC) vulnerabilities have been exploited by three separate threat clusters linked to ransomware and state-sponsored attacks. The attacks exploited CVE-2026-20079, a maximum-severity authentication bypass flaw, and CVE-2026-20316, a static credential vulnerability that allows attackers to log in using a low-privileged account. According to a new […]
Cisco confirms CVE-2026-20079 Secure FMC flaw exploited in attacks
Cisco has confirmed that a maximum-severity authentication bypass vulnerability tracked as CVE-2026-20079 in its Secure Firewall Management Center (FMC) software is being actively exploited in attacks. The vulnerability has a maximum CVSS score of 10.0 and allows unauthenticated, remote attackers to bypass authentication and execute scripts and commands as root on vulnerable devices. “In August […]
Cisco warns of ASA and FTD VPN flaw exploited to crash devices
Cisco is warning that a high-severity denial-of-service vulnerability in Secure Firewall ASA and Threat Defense (FTD) software is being actively exploited in attacks to remotely crash affected devices. The flaw, tracked as CVE-2026-20349, has a severity score of 8.6 and impacts devices running Cisco Secure Firewall Adaptive Security Appliance (ASA) or Secure Firewall Threat Defense […]
Cisco warns of high-severity ClamAV flaws with public exploits
Cisco warned of two high-severity vulnerabilities affecting the Secure Endpoint Connector that allow threat actors to crash the ClamAV scanning process in denial-of-service (DoS) attacks. The security flaws (tracked as CVE-2026-20337 and CVE-2026-20338) were found in the ZIP archive parser of ClamAV (Clam AntiVirus), the open-source and cross-platform engine used to scan files for malware. As Cisco explained […]
Cisco warns of FMC static credential flaw exploited in zero-day attacks
Cisco is warning that a high-severity Secure Firewall Management Center (FMC) static credential vulnerability, tracked as CVE-2026-20316, was actively exploited in zero-day attacks to gain unauthorized access to vulnerable devices. The vulnerability is caused by static credentials for a low-privilege account built into Cisco Secure FMC Software. Cisco says an unauthenticated, remote attacker can use […]
Cisco finally confirms attackers exploiting Unified CM flaw
Cisco confirmed that attackers are now exploiting a Unified Communications Manager (Unified CM) vulnerability patched in early June. Unified CM (formerly known as Cisco CallManager) is the central control system for Cisco IP telephony systems, handling call routing, device management, and telephony features. Threat actors without privileges can exploit the vulnerability (CVE-2026-20230) remotely in low-complexity […]
CISA sets urgent deadline to fix Cisco flaw exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is giving federal agencies until Sunday to patch a vulnerability in Cisco Unified Communications Manager Server that is being actively exploited. Identified as CVE-2026-20230, the security issue is server-side request forgery (SSRF) and has been added to the agency’s catalog of Known Exploited Vulnerabilities (KEV). Per Binding Operational […]
Cisco Unified CM flaw CVE-2026-20230 now exploited in attacks
A high-severity SSRF vulnerability, tracked as CVE-2026-20230, in Cisco Unified Communications Manager Server is now being exploited in attacks. Cisco released security updates for the CVE-2026-20230 flaw on June 3, warning that exploitation could give attackers root privileges on the device. “A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager […]