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Libraesva Email Security Gateway: Email Security Gateway Command Injection Vulnerability

Libraesva Email Security Gateway

Libraesva Email Security Gateway (ESG) contains a command injection vulnerability which allows command injection via a compressed e-mail attachment. Added to CISA KEV on 2025-09-29.

Why this severity: CVSS 6.1 (CNA, v3.1); actively exploited (CISA KEV)

Started: Sep 29, 2025
Closed: Sep 29, 2025
CVE: CVE-2025-59689

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Updated Sep 29, 2025

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Sep 29, 2025
CISA added CVE-2025-59689 to the KEV catalog (due 2025-10-20).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. CVSS from the CVE record (cvelistV5). Exact affected/fixed version strings are not always in the KEV record; verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier; many entries are older CVEs newly confirmed as exploited in 2025).

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