CVE-2026-76519
Cisco Secure Email Gateway Relative Path Traversal Vulnerability
Cisco Secure Email Gateway contains a relative path traversal vulnerability that could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system.
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. Deadline for federal agencies: 2026-10-17.
2 articles across 2 outlets · first covered Oct 14, 2026 · latest Oct 14, 2026
Coverage timeline
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CISA Flags Exploited Cisco Email Gateway Flaw With Critical Scorecisa.gov · Oct 14, 2026
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Cisco Email Gateway Flaw Exploited to Run Commands as Rootthehackernews.com · Oct 14, 2026