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CVE-2025-54820

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiManager 7.4.0 through 7.…

Severity
High8.1CVSS 3.1, High
EPSS
0.87%
Published
10 Mar 2026
Updated
17 Jun 2026

Description

Title, description and vendor guidance are quoted from the source records.

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiManager 7.4.0 through 7.4.2, FortiManager 7.2.0 through 7.2.10, FortiManager 6.4 all versions may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. The success of the attack depends on the ability to bypass the stack protection mechanisms.

Weakness: CWE-121, CWE-787

Known exploited

Not listed in CISA KEV as of the last check.

Exploit prediction

0.87% probability of exploitation in the next 30 days (percentile 57%).

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

What the source states, per branch

Versions matched by Patcharo

Fortinet FortiManagerSource: Fortinet (CVE record)

BranchAffectedFixed in
7.4
7.4.0 – 7.4.2
Fixed after 7.4.2
7.2
7.2.0 – 7.2.10
Fixed after 7.2.10
6.4
6.4.0 – 6.4.15
Fixed after 6.4.15

Versions not listed are stated unaffected by the vendor.

Workaround / Vendor remediation

Vendor remediation · FortiManager

Upgrade to FortiManager version 7.6.0 or above Upgrade to FortiManager version 7.4.3 or above Upgrade to FortiManager version 7.2.11 or above Upgrade to upcoming FortiManager version 6.4.16 or above

References

Provenance

Every fact on this page comes from the sources below. Nothing is written by an AI.

Fortinet (CVE record)
Fortinet (CVE record) · 27 Sept 2026, 23:46 UTC · Parser patcharo-cve5/1.1.0
NVD
NVD · 27 Sept 2026, 23:44 UTC · Parser patcharo-nvd/1.0.0
FIRST EPSS
FIRST EPSS · 27 Sept 2026, 23:46 UTC · Parser patcharo-epss/1.0.0

Last verified: 28 Sept 2026, 02:31 UTC