by Kastro
Paper/Archive/CVE-2026-22904

CVE-2026-22904

WAGO 0852-1322 — Stack Overflow via Oversized Cookie Fields in lighttpd

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 50.1.501 × 2010.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
0852-13220.0.0 – 2.64–CNA
0852-13280.0.0 – 2.64–CNA
0852-13222.64–CNA
0852-13282.64–CNA

Scores by source

CERTVDE (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refcertvde.com/de/advisories/VDE-2026-004