CVE-2026-71407

5.6 MEDIUM 0.5% exploit odds Fix listed Memory safety Network gear

What it is

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 0.5% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-08-12 13:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-24 15:10 UTC Last updatedMost recent change to the record

Details

Published: 2026-08-12 13:17 UTC
Last modified: 2026-10-24 15:10 UTC
Exploit probability: 0.5% · EPSS, next 30 days
Weakness: CWE-121
Record status: Modified

Affected

Fortinet Fortios < 7.6.7

Attack profile CVSS 3.1 · 5.6

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

Raw vector

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

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Fix and advisories

https://fortiguard.fortinet.com/psirt/FG-IR-26-161

References

NVD record · CVE.org record