HOMEVULNERABILITIESCVE-2014-8241
CRITICAL

CVE-2014-8241

CWE-476Published: December 14, 2016· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2014-8241 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Red Hat4 product(s)
enterprise linux desktopenterprise linux hpc nodeenterprise linux serverenterprise linux workstation
tigervnc1 product(s)
tigervnc
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/70390
ADVISORYhttps://rhn.redhat.com/errata/RHSA-2015-2233.html
ADVISORYhttp://www.securityfocus.com/bid/70390
ADVISORYhttps://rhn.redhat.com/errata/RHSA-2015-2233.html

All References (14)

→
http://seclists.org/oss-sec/2014/q4/278Mailing List
→
http://seclists.org/oss-sec/2014/q4/300Mailing List
→
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
→
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
→
http://www.securityfocus.com/bid/70390Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=1151312Issue Tracking
→
https://rhn.redhat.com/errata/RHSA-2015-2233.htmlThird Party Advisory
→
http://seclists.org/oss-sec/2014/q4/278Mailing List
→
http://seclists.org/oss-sec/2014/q4/300Mailing List
→
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
→
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
→
http://www.securityfocus.com/bid/70390Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=1151312Issue Tracking
→
https://rhn.redhat.com/errata/RHSA-2015-2233.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2014-8241
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-476
CISA KEVNo
Affected2 vendor(s)
PublishedDec 14, 2016

Related CVEs (CWE-476)

CVE-2022-36648
10.0
CVE-2010-2495
10.0
CVE-2022-26094
9.8
CVE-2015-9073
9.8
CVE-2022-26093
9.8
CVE-2015-9043
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2014-8241 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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