CVE-2026-22627

Name: CVE-2026-22627
Creator: NVD / NIST
Published: 2026-03-10T18:18:12.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2026-22627 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiSwitchAXFixed 1.0.0 through 1.0.1 may allow an unauthenticated attacker within the same adjacent network to execute unauthorized code or commands on the device via sending a crafted LLDP packet.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiSwitchAXFixed 1.0.0 through 1.0.1 may allow an unauthenticated attacker within the same adjacent network to execute unauthorized code or commands on the device via sending a crafted LLDP packet.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.29%

20.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Fortinet	Fortiswitchaxfixed	>= 1.0.0, < 1.0.2

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-086Vendor Advisory

Timeline

Published: Mar 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-22627?

How severe is CVE-2026-22627?

CVE-2026-22627 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2026-22627?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-22627?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST