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Fencer Intel
critical 9.8

CVE-2014-8241 json

XRegion in TigerVNC allows remote VNC servers to cause a denial of service (NULL pointer dereference) by leveraging failure to check a mall…

published 2016-12-14 9 y ago modified 2026-06-17 4 mo ago also EUVD-2014-8082

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

XRegion in TigerVNC allows remote VNC servers to cause a denial of service (NULL pointer dereference) by leveraging failure to check a malloc return value, a similar issue to CVE-2014-6052.

Patch / fix

  • tigervnc Debian 14, Debian 13, Debian 12 1.7.0-2

debian advisories DEBIAN-CVE-2014-8241

  • tigervnc RHEL 7 1.3.1-3.el7
  • tigervnc-icons RHEL 7 1.3.1-3.el7
  • tigervnc-server RHEL 7 1.3.1-3.el7
  • tigervnc-license RHEL 7 1.3.1-3.el7
  • tigervnc-server-applet RHEL 7 1.3.1-3.el7
  • tigervnc-server-module RHEL 7 1.3.1-3.el7
  • tigervnc-server-minimal RHEL 7 1.3.1-3.el7

red hat advisories RHSA-2015:2233

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-8241 updated cvss 6.8

tigervnc: NULL pointer dereference flaw in XRegion

  • Red Hat Enterprise Linux 5 vnc Red Hat Enterprise Linux 6 tigervnc, tigervnc-server, tigervnc-server-applet, tigervnc-server-module
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) tigervnc 1.3.1-3.el7, tigervnc-icons 1.3.1-3.el7, tigervnc-server 1.3.1-3.el7, tigervnc-license 1.3.1-3.el7, tigervnc-server-minimal 1.3.1-3.el7 Red Hat Enterprise Linux Client Optional (v. 7) tigervnc-server-applet 1.3.1-3.el7, tigervnc-server-module 1.3.1-3.el7 Red Hat Enterprise Linux ComputeNode (v. 7) tigervnc 1.3.1-3.el7, tigervnc-license 1.3.1-3.el7, tigervnc-server-minimal 1.3.1-3.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) tigervnc 1.3.1-3.el7, tigervnc-icons 1.3.1-3.el7, tigervnc-server 1.3.1-3.el7, tigervnc-server-applet 1.3.1-3.el7, tigervnc-server-module 1.3.1-3.el7 Red Hat Enterprise Linux Server (v. 7) tigervnc 1.3.1-3.el7, tigervnc-icons 1.3.1-3.el7, tigervnc-server 1.3.1-3.el7, tigervnc-license 1.3.1-3.el7, tigervnc-server-minimal 1.3.1-3.el7 Red Hat Enterprise Linux Server Optional (v. 7) tigervnc-server-applet 1.3.1-3.el7, tigervnc-server-module 1.3.1-3.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) tigervnc 1.3.1-3.el7, tigervnc-icons 1.3.1-3.el7, tigervnc-server 1.3.1-3.el7, tigervnc-license 1.3.1-3.el7, tigervnc-server-minimal 1.3.1-3.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) tigervnc-server-applet 1.3.1-3.el7, tigervnc-server-module 1.3.1-3.el7
    fixed: vendor fix RHSA-2015:2233

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.06% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.