CVE-2026-2747

PGP Mixed Plaintext and Encrypted Content

CVSS 6.9 MEDIUMEPSS 0.3%CWE-200

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

04 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

SEPPmail Secure Email Gateway before version 15.0.1 decrypts inline PGP messages without isolating them from surrounding unencrypted content, allowing exposure of sensitive information to an unauthorized actor.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

Affected products

SEPPmail · Secure Email Gateway

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References

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure