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CVE-2025-41732

Wago 0852-1322 Firmware buffer overflow

9.8 CRITICALEPSS 0.43%
  1. Published10 Dec 2025

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Wago 0852-1322 Firmware< 02.64
Wago 0852-1328 Firmware< 02.64

Remediation

Fixed in
Wago 0852-1322 Firmware≥ 02.64
Wago 0852-1328 Firmware≥ 02.64

References

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Frequently asked

Is CVE-2025-41732 being actively exploited?

CVE-2025-41732 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.43%.

How severe is CVE-2025-41732?

CVE-2025-41732 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2025-41732?

Affected products include Wago 0852-1322 Firmware, Wago 0852-1328 Firmware.

How do I fix CVE-2025-41732?

Upgrade affected software to a fixed version, for example Wago 0852-1322 Firmware 02.64, Wago 0852-1328 Firmware 02.64 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-41732 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.