CVE-2014-6051
HIGH · CVSS 7.5EPSS 8.3%EU EUVD
Integer overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via an advertisement for a large screen size, which triggers a heap-based buffer overflow.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-189
- EPSS score
- 8.3% (95th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2014-5939)
- Published
- September 30, 2014
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2014-5939 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- debian / debian linux
- fedoraproject / fedora
- fedoraproject / fedora
- libvncserver / libvncserver
- oracle / solaris
- redhat / enterprise linux server aus
- redhat / enterprise linux server eus
References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html(Third Party Advisory)
- http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html(Third Party Advisory)
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
- http://rhn.redhat.com/errata/RHSA-2015-0113.html(Third Party Advisory)
- http://seclists.org/oss-sec/2014/q3/639(Third Party Advisory)
- http://secunia.com/advisories/61506(Permissions Required, Third Party Advisory)
- http://www.debian.org/security/2014/dsa-3081(Third Party Advisory)
- http://www.ocert.org/advisories/ocert-2014-007.html(Patch, Third Party Advisory, US Government Resource)
- http://www.openwall.com/lists/oss-security/2014/09/25/11(Third Party Advisory)
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html(Third Party Advisory)
- http://www.securityfocus.com/bid/70093
- https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273(Patch, Third Party Advisory)
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://security.gentoo.org/glsa/201507-07
- https://security.gentoo.org/glsa/201612-36
- https://usn.ubuntu.com/4587-1/
- https://www.kde.org/info/security/advisory-20140923-1.txt(Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain