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VERIFIEDConfidence: HIGH
Source identified
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Fact-check summary

Reported via CISA KEV catalog entry; no corroborating coverage from other outlets found yet — story is recent.

1 caveat
  • ▲No independent reports located for CVE-2026-76461 addition or the specific Cisco advisory on 2026-09-14.
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via CISA KEV

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Home/Tech/CISA Adds Cisco Email Gateway Flaw to KEV Catalog
VERIFIEDBy Xavier Rivera· ·1 min read

CISA Adds Cisco Email Gateway Flaw to KEV Catalog

CISA added CVE-2026-76461, a SQL injection flaw in the Cisco email security appliance, to its Known Exploited Vulnerabilities catalog on 2026-09-14. Federal agencies have until 2026-09-17 to apply vendor mitigations under BOD 26-04, with forensic triage required.

Source:CISA KEV
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CISA Adds Cisco Email Gateway Flaw to KEV Catalog
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TL;DRAI · 60 sec read

CISA adds CVE-2026-76461 to its Known Exploited Vulnerabilities catalog. The entry covers a SQL injection flaw in Cisco Secure Email Gateway AsyncOS software that permits unauthenticated remote attackers to execute root-level commands. Federal agencies must apply mitigations by September 17, 2026, following BOD 26-04 guidelines on risk-based updates and forensics.

CISA placed CVE-2026-76461 into the Known Exploited Vulnerabilities catalog on 2026-09-14. The catalog entry addresses a SQL injection issue present in the AsyncOS software that powers the Cisco product.

Cisco Secure Email Gateway vulnerability allows root-level command execution. The flaw could let an unauthenticated remote attacker run arbitrary commands with root privileges on the underlying operating system.
The flaw could let an unauthenticated remote attacker run arbitrary commands with root privileges on the underlying operating system.
The vulnerability is tracked as CVE-2026-76461 and is related to CWE-89.

Entry triggers federal remediation deadline of 2026-09-17. Federal agencies must apply mitigations by 2026-09-17. The required action is to follow vendor instructions while meeting CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk guidance and the agency’s “Forensics Triage Requirements.”
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For cloud services, agencies must follow applicable BOD 26-04 guidance or discontinue use of the product if mitigations are unavailable.
It remains unknown whether the vulnerability is known to be used in ransomware campaigns.
Stakeholders must evaluate internet exposure and forensic needs. Agencies are responsible for assessing each asset’s internet exposure and ensuring they meet BOD 26-04 patching guidelines.

Forensic triage is required per BOD-26-04. It remains unknown whether the vulnerability is known to be used in ransomware campaigns.
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Details reference Cisco advisory and NVD entry. Additional information appears in the Cisco Security Advisory at “cisco-sa-esa-inj-2bLVGmhX.” The catalog entry also links to the NVD detail page for CVE-2026-76461 along with BOD 26-04 resources.

EXPERT TAKE

Organizations running Cisco SEG should treat this as an immediate priority given confirmed active exploitation and the root-privilege impact.

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