CVE-2025-41732

CRITICAL

WAGO 0852-1328 and 0852-1322 Firmware < 02.64 - Unauthenticated Stack-based Buffer Overflow via check_cookie() sscanf

Title source: llm
STIX 2.1

Description

An unauthenticated remote attacker can abuse unsafe sscanf calls within the check_cookie() function to write arbitrary data into fixed-size stack buffers which leads to full device compromise.

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0037
EPSS Percentile 28.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-121 CWE-787
Status published
Products (2)
wago/0852-1322_firmware < 02.64
wago/0852-1328_firmware < 02.64
Published Dec 10, 2025
Tracked Since Feb 18, 2026