Buffer Overflow Vulnerability in Cookie Handling for Affected Vendor Product
CVE-2026-22904

9.8CRITICAL

Key Information:

Vendor

Wago

Status
0852-1322
0852-1328
Vendor
CVE Published:
9 February 2026

What is CVE-2026-22904?

An improper length handling vulnerability in the cookie processing mechanism allows unauthenticated remote attackers to exploit oversized cookie values. This can lead to a stack buffer overflow, which might result in a denial-of-service condition and potentially allow for remote code execution if exploited effectively.

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Deploy the Patch

Affected Version(s)

0852-1322 0.0.0 <= 2.64

0852-1322 2.64

0852-1328 0.0.0 <= 2.64

References

https://certvde.com/de/advisories/VDE-2026-004

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Diconium
JSON
.