Cisco said it detected active exploitation in July and has published indicators of compromise (IoCs) to help organizations identify potential attacks. The to achieve privilege escalation.
According to Device Manager (FDM), Secure Firewall ASA Software, Secure Firewall Threat Defense (FTD) Software, and Security Cloud Control (formerly Defense Orchestrator) are not affected.
Indicators of compromise and available hot fixes
Cisco provided IoCs to help identify potential exploitation of CVE-2026-20316. (KEV) catalog on July 29, directing federal civilian agencies to remediate the issue by August 1.
While Cisco acknowledged ongoing exploitation and published IoCs, it has not disclosed details about the attacks observed in the wild, and no public reports describing the campaigns have emerged. Horizon3.ai has also not released technical details about the vulnerability.
Cisco additionally updated its advisory for CVE-2026-20079, a critical Cisco Secure FMC vulnerability originally patched in March. The latest disclosure follows several recent instances in which Cisco identified active exploitation targeting other products, including Catalyst SD-WAN Manager and Unified Communications Manager, highlighting the continued focus on securing enterprise networking infrastructure.
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