CVE-2026-59840

A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to information disclosure via <insert attack vector here>

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWE

CWE-126

Published

2026-07-14

Modified

2026-10-24

Record from

the NVD, synced 2026-10-25

Affected

• fortinet:fortios
• fortinet:fortiproxy

References

• https://fortiguard.fortinet.com/psirt/FG-IR-26-154
• https://cert-portal.siemens.com/productcert/html/ssa-864900.html

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