Called exploited 189 days after disclosure.
Measured from the CVE publication date to the earliest of 3 KEV catalogues that list it.
The life of this vulnerability
- CVE reserved
- CVE published5mo
- First KEV listing6mo
- Last sightingsame day
Gaps are compressed to equal steps. The elapsed time is printed under each.
Which catalogues call it exploited
- CISA KEVUS federallisted Sep 9, 2026
- EUVDENISA, European Unionlisted Sep 9, 2026
- VulnCheck KEVcommercial researchlisted Sep 9, 2026
- CIRCLaggregator, mirrors the abovelisted Sep 9, 2026, not counted
3 catalogues list it. CIRCL aggregates the others and is shown but not counted.
Public exploitation evidence
- reported exploitationsec.cloudapps.cisco.com/security/center/content/CiscoSecurit
- reported exploitationwww.cisa.gov/sites/default/files/feeds/known_exploited_vulne
2 public reports collected from VulnCheck and CIRCL, first on Sep 9, 2026. Each links to its original source. We have not verified them.
Description
Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain an authentication Bypass using an alternate path or channel vulnerability that could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system.
Required action (CISA)
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
