Malware family targeting network devices, attributed by US and UK authorities to the Russian APT Sandworm.
Cisco confirmed on September 9 that attackers are exploiting a CVSS 10.0 bypass in its Firewall Management Center to run code as root. CISA added it to its Known Exploited Vulnerabilities list the same day, with a three-day deadline for federal agencies.
Reality
Cisco Talos says three threat clusters are exploiting a CVSS 10.0 pre-auth root bypass and a 5.3 hard-coded credential in Secure Firewall Management Center. A patch policy with a severity cutoff above 5.3 would have skipped the credential fix on the console that pushes policy to every managed firewall.
Reality
CVE-2026-20079 hands unauthenticated attackers root on Secure Firewall Management Center. CISA wants federal boxes fixed by September 12. The hot fix closes the path but does not evict anyone who already walked it.
Perspective Coverage
6 publishersReality
Eclypsium tracked 158 infrastructure advisories between August 25 and September 17. The exploited maximum-severity flaws it highlights are authentication bypasses in Cisco's Firewall Management Center and Identity Services Engine.
Reality
Cisco Talos says three separate clusters, one sharing tooling with Sandworm, worked the same CVSS 10.0 bypass in Secure Firewall Management Center. The scope change in that vector reaches every firewall the console manages.
Reality
Cisco patched CVE-2026-20079 in March 2026 and confirmed in September that attackers had used it in August. Talos ties three clusters to the console, including one it links to Sandworm tooling and a Qilin affiliate.
Reality
An authentication bypass in Cisco's firewall management console was fixed in March 2026 and exploited in the wild by August. Cisco Talos attributes the activity to three separate clusters with three different objectives.
Reality
Sophos found the timezone_check implant on compromised Cisco Firewall Management Center devices in August 2026 and assessed it likely Sandworm's work. Generic SysV persistence replaces the firmware trick and widens the appliances it can run on.
Reality