CVE-2026-22903CRITICAL 9.8EPSS p47.0%

CVE-2026-22903CVE-2026-22903

Description

An unauthenticated remote attacker can send a crafted HTTP request containing an overly long SESSIONID cookie. This can trigger a stack buffer overflow in the modified lighttpd server, causing it to crash and potentially enabling remote code execution due to missing stack protections.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.67% probability of exploitation · percentile 47.0% · 2026-06-19T12:03:05Z
Published2026-02-09
Last modified2026-04-15

Underlying weaknesses· 1

CWE-121

References

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

1

TypeTargetConfidenceTier
WeaknessStack-based Buffer Overflowcwe-1210%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.