VULNERABILITY INTELLIGENCE

CVE-2026-32854

CVSS score7.5 HIGH
EPSS probability5.42%
CISA KEVNot currently listed
Published2026-03-24
Last modified2026-07-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

LibVNCServer versions 0.9.15 and prior (fixed in commit dc78dee) contain null pointer dereference vulnerabilities in the HTTP proxy handlers within httpProcessInput() in httpd.c that allow remote attackers to cause a denial of service by sending specially crafted HTTP requests. Attackers can exploit missing validation of strchr() return values in the CONNECT and GET proxy handling paths to trigger null pointer dereferences and crash the server when httpd and proxy features are enabled.

Weakness classification

  • disclosure@vulncheck.com: CWE-476

Primary references