CVE-2026-22904
Critical
Description
Improper length handling when parsing multiple cookie fields (including TRACKID) allows an unauthenticated remote attacker to send oversized cookie values and trigger a stack buffer overflow, resulting in a denial‑of‑service condition and possible remote code execution.
SeverityCritical
CVSS9.8
Exploit probability—
ProductWago 0852-1322
PublishedFeb 9, 2026
First seenFeb 9, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| WAGO 0852-1322 | v ≤ 2.64, 2.64 | — |
| WAGO 0852-1328 | v ≤ 2.64, 2.64 | — |
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