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CVE-2025-41732VulnerabilityPublished Updated

CVE-2025-41732: WAGO Indsutrial-Managed-Switches · Stack-based Buffer Overflow

Affects WAGO Indsutrial-Managed-SwitchesSource CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
WAGO Indsutrial-Managed-SwitchesAffected
  • =0.0.0
Fixed in–

AI-suggested

Organizations should immediately inventory and identify all WAGO Industrial-Managed-Switches within their networks. Until a vendor patch is released, network segmentation should be enforced to isolate these switches from untrusted networks and limit remote access. Deploy strict firewall rules to restrict management interface access to trusted IP addresses only. Implement network intrusion detection and prevention systems (IDS/IPS) with signatures or anomaly detection tuned for unusual traffic patterns targeting these devices. Monitor device logs and network traffic for signs of exploitation attempts, such as malformed packets or unexpected connections to the check_cookie() function endpoint. Engage with WAGO support channels to obtain any available vendor advisories or beta patches. Consider deploying virtual patching via network security appliances to block exploit attempts. Additionally, conduct regular security assessments and penetration tests focusing on industrial network components. Prepare incident response plans specific to industrial control system compromises to minimize downtime and impact.

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

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