CVE-2025-53844 PUBLISHED

Assigner: fortinet
Reserved: 10.07.2025 Published: 12.05.2026 Updated: 13.05.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CVSS Score: 8.3

Product Status

Vendor Fortinet
Product FortiOS
Versions Default: unaffected
  • affected from 7.6.0 to 7.6.3 (incl.)
  • affected from 7.4.0 to 7.4.8 (incl.)
  • affected from 7.2.0 to 7.2.11 (incl.)
  • affected from 7.0.0 to 7.0.17 (incl.)
  • affected from 6.4.0 to 6.4.16 (incl.)
  • affected from 6.2.0 to 6.2.17 (incl.)
  • affected from 6.0.0 to 6.0.18 (incl.)

Solutions

Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Upgrade to FortiOS version 7.2.12 or above Upgrade to FortiOS version 7.0.18 or above Fortinet remediated this issue in FortiSASE version 25.3.a and hence customers do not need to perform any action. Upgrade to FortiSwitchManager version 7.2.7 or above Upgrade to FortiSwitchManager version 7.0.6 or above Fortinet remediated this issue in FortiEdgeCloud version 25.3 and hence customers do not need to perform any action.

References

Problem Types

  • Execute unauthorized code or commands CWE