What is CVE-2026-32854?

CVE-2026-32854 is a high-severity vulnerability in Libvnc Libvncserver, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-03-24.

How severe is CVE-2026-32854?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Libvnc Libvncserver

CVE-2026-32854

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 s…

EPSS: 0.053 (91.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Libvnc Libvncserver — versions 0, dc78dee51a7e270e537a541a17befdf2073f5314
Libvncserver_project Libvncserver

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

disclosure@vulncheck.com (Exploit, vendor-advisory, Vendor Advisory)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-32854?: CVE-2026-32854 is a high-severity vulnerability in Libvnc Libvncserver, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-03-24.
How severe is CVE-2026-32854?: High severity. CVSS v3 base score is 7.5 out of 10.