CVE-2026-22903

critical · 9.8

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.

9.8

CVSS

0.7%

EPSS (exploit prob.)

51st

EPSS percentile

2026-02-09

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-121

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-22903