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CVE-2016-7942
The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and…
Critical9.8EPSS 4.5%
- Published
- Updated
- Reserved
- Assigned by
- microfocus
Description
The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations.
Timeline
ID reserved
By microfocus
- 3 months later
· 3 months later
Published
- 8 years later
· 8 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 | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.5% · top 8.5% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (10)
- 1036945 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-3758-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201704-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 93363 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [xorg-announce] 20161004 X.Org security advisory: Protocol handling issues in X Window System client libraries (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20161004 Re: X.Org security advisory: Protocol handling issues in X Window System client libraries (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20161004 X.Org security advisory: Protocol handling issues in X Window System client libraries (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3758-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2016-0df69ab477 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8ea762f94f4c942d898fdeb590a1630c83235c17 (opens in a new tab)x_refsource_CONFIRMx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-7942)Record last updated .