by Kastro
Paper/Archive/CVE-2026-29133

CVE-2026-29133

SEPPmail Secure Email Gateway — UID Regex Bypass

EPSS 0.2%CVSS 9.1
critical.is priorityof 100
30
CVSS 9.1 (NVD)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 14.1.141 × 202.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to upload PGP keys with UIDs that do not match their email address.

Affected

ProductAffectedFixed inSource
Secure Email Gateway< 15.0.315.0.3CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NCSC.ch (CNA)5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refdownloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503