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CVE-2018-20024
LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.
High7.5EPSS 3.2%
- Published
- Updated
- Reserved
- Assigned by
- Kaspersky
Description
LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (5 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.
Weakness
- Denial of Service
- CWE-476 (opens in a new tab)All about CWE-476 and its CVEs
Affected products
LibVNC
- affected commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7
References (11)
- DSA-4383 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/ (opens in a new tab)x_refsource_MISCx_transferred
- USN-3877-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201908-05 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-202006-06 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- USN-4547-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4547-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_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)
- 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-2018-20024)Record last updated .