CVE-2025-53844

high

Published 2026-05-12 · Modified 2026-05-15

CVSS v3

8.8

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2

—

VIR risk

8.8

Description

A out-of-bounds write vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11 allows attacker to execute unauthorized code or commands via specially crafted packets.

Predictions

Exploit likelihood

92%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: psirt@fortinet.com — https://fortiguard.fortinet.com/psirt/FG-IR-26-123

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-123

CWEs

CWE-787

Verify integrity in audit chain (admin only). AS-IS.