CVE-2025-53844

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.

Score

CVSS 3.1 8.8 High

Status

Modified - psirt@fortinet.com

Published

2026-05-12

Last modified

2026-10-15

Weaknesses

CWE-787

Affected products

• Fortios (Fortinet)
• Ruggedcom Ape1808 (Siemens)

References

• https://fortiguard.fortinet.com/psirt/FG-IR-26-123
• https://cert-portal.siemens.com/productcert/html/ssa-864900.html