CVE-2021-26112

HIGH

FortiWAN < 4.5.8 - Unauthenticated Stack-based Buffer Overflow via Crafted Requests

Title source: llm

Description

Multiple stack-based buffer overflow vulnerabilities [CWE-121] both in network daemons and in the command line interpreter of FortiWAN before 4.5.9 may allow an unauthenticated attacker to potentially corrupt control data in memory and execute arbitrary code via specifically crafted requests.

References (1)

Core 1

Core References

Patch, Vendor Advisory x_refsource_confirm

https://fortiguard.com/psirt/FG-IR-21-065

Scores

CVSS v3 8.1

EPSS 0.0132

EPSS Percentile 80.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-787

Status published

Products (1)

fortinet/fortiwan < 4.5.8

Published Apr 06, 2022

Tracked Since Feb 18, 2026