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CVE-2018-20749
LibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was…
Critical9.8EPSS 3.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
LibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (4 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)
- [debian-lts-announce] 20190131 [SECURITY] [DLA 1652-1] libvncserver security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 106825 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/LibVNC/libvncserver/commit/15bb719c03cc70f14c36a843dcb16ed69b405707 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/LibVNC/libvncserver/issues/273 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3877-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.openwall.com/lists/oss-security/2018/12/10/8 (opens in a new tab)x_refsource_MISCx_transferred
- [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4547-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4587-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf (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://trackcve.app/cve/CVE-2018-20749)Record last updated .