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CVE-2014-6051
Integer overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a…
- 7.5HighCVSS base score
- 8.3%Exploitation in 30 daysEPSS · top 5.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By mitre
- 29 days later
· 29 days later
Published
- 10 years later
· 10 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 8.3% · top 5.0% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
17
- http://www.ocert.org/advisories/ocert-2014-007.html (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-201612-36 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- openSUSE-SU-2015:2207 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 61506 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://www.kde.org/info/security/advisory-20140923-1.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2015:0113 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20140925 [oCERT-2014-007] libvncserver multiple issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20140923 Multiple issues in libVNCserver (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201507-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 70093 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-3081 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- FEDORA-2014-11537 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2014-11685 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4587-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2014-5939 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2014-6051)Record last updated .