A out-of-bounds read vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4 all versions, FortiOS…

published 2026-11-11 12h ago modified 2026-11-11 12h ago also EUVD-2026-123903

cvss: 7.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: —; no EPSS score yet
public exploits: 0; none known

A out-of-bounds read vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow a remote privileged attacker to execute arbitrary code or command via crafted paquets.

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CVSS scores

assigned by	version	score	vector
CNA	3.1	7.4	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C
CNA	3.1	7.4	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

Fortinet FortiOS

Classification

Weakness

CWE-125 Out-of-bounds Read

Technology feeds

Fortinet rss critical rss

References

fortiguard.fortinet.com /psirt/FG-IR-26-270

Sources

CVE List CVE-2026-126256
NVD CVE-2026-126256

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