CVE-2026-32854

HIGH

7.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung7.5

SchweregradHIGH

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/24/2026

Zuletzt geandert3/25/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

libvncserver_project:libvncserver

Schwachen (CWE)

CWE-476

Referenzen

https://github.com/LibVNC/libvncserver/commit/dc78dee51a7e270e537a541a17befdf2073f5314(disclosure@vulncheck.com)

https://github.com/LibVNC/libvncserver/security/advisories/GHSA-xjp8-4qqv-5x4x(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/libvncserver-httpd-proxy-null-pointer-dereference(disclosure@vulncheck.com)

IOC Korrelationen

Keine Korrelationen erfasst

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