CVE-2026-126259
Fortinet FortiOS Missing Authentication for Critical Function Vulnerability
Description
A missing authentication for critical function vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 through 7.4.12, FortiOS 7.2.0 through 7.2.13 may allow an unauthenticated attacker with HA FGSP + standalone-config-sync, or autoscale to execute command as super admin via crafted HA packets.
INFO
Published Date :
Nov. 11, 2026, 9:31 p.m.
Last Modified :
Nov. 11, 2026, 9:31 p.m.
Remotely Exploit :
Yes !
Source :
fortinet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 6abe59d8-c742-4dff-8ce8-9b0ca1073da8 |
Solution
- Update FortiOS to a fixed version.
- Apply security patches from Fortinet.
- Verify system integrity after update.
- Review HA and autoscale configurations.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-126259 vulnerability anywhere in the article.