CVE-2025-41732

CRITICAL
Published Dec 10, 2025 Modified Dec 19, 2025 CWE-121 CWE-787

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-121 CWE-121
CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
wago 0852-1328_firmware
wago 0852-1328
wago 0852-1322_firmware
wago 0852-1322

References

Frequently Asked Questions

What is CVE-2025-41732? +
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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-41732? +
CVE-2025-41732 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-41732? +
CVE-2025-41732 affects products from wago, specifically: 0852-1322, 0852-1322_firmware, 0852-1328, 0852-1328_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-41732? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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