CVE•Published 2026-03-24•Modified 2026-07-14•1 article on news•6 live references•NVD data
CVE-2026-32853Libvncserver_project · Libvncserver
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS percentile
35
Exploit Prediction Scoring System · top 65% of all CVEs
Weaknesses (CWE)
Description
LibVNCServer versions 0.9.15 and prior (fixed in commit 009008e) contain a heap out-of-bounds read vulnerability in the UltraZip encoding handler that allows a malicious VNC server to cause information disclosure or application crash. Attackers can exploit improper bounds checking in the HandleUltraZipBPP() function by manipulating subrectangle header counts to read beyond the allocated heap buffer.
Timeline
Published 2026-03-24
Modified 2026-07-14
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-32853Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Libvncserver Project Libvncserver"All exposed Libvncserver Project Libvncserver instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Libvncserver"HTTP body or banner mentions "Libvncserver" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-32853Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-32853Censys host search filtered to this CVE id.
grep.app
CVE-2026-32853Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-32853GitHub code search for direct mentions.
Google dork
"CVE-2026-32853" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-32853 on GitHub.