CVE-2026-126157

EUVD-2026-123823
A improper authentication vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2 all versions may allow an unauthenticated attacker to gain access to other users' secure email accounts via crafted HTTP requests.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
fortinetCNA
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
fortinetfortimail
8.0.0 ≤
𝑥
≤ 8.0.1
CNA
fortinetfortimail
7.6.0 ≤
𝑥
≤ 7.6.6
CNA
fortinetfortimail
7.4.0 ≤
𝑥
≤ 7.4.8
CNA
fortinetfortimail
7.2.0 ≤
𝑥
≤ 7.2.9
CNA
fortinetfortimail
7.0.0 ≤
𝑥
≤ 7.0.9
CNA