CVE-2026-22903

CRITICAL EPSS 47.2%

Published Feb 9, 20264mo ago · Modified Jun 17, 20261w ago

9.8 CVSS 3.1

Critical

Published Feb 9, 2026 4mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

9.8

Exploitability

3.9

Impact

5.9

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

47.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-121

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.