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Case File

CVE-2022-41556

HIGH · CVSS 7.5 EPSS 2.79% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-10-06 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2022-41556
Severity
HIGH
CVSS
7.5
EPSS
2.79%

Original NVD Description

A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients. It is related to RDHUP mishandling in certain HTTP/1.1 chunked situations. Use of mod_fastcgi is, for example, affected. This is fixed in 1.4.67.

Related CVEs

Other vulnerabilities affecting the same vendor(s)