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Vulnerabilities / CVE-2018-15126

critical

CVE-2018-15126

libvncserver: Use-after-free in file transfer extension allows for potential code execution

Published Modified CWE 416
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.5CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), Ubuntu (medium).

Description

LibVNC before commit 73cb96fec028a576a5a24417b57723b55854ad7b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution

Affected packages and fixed versions

SourcePackageFixed in
debian 11libvncserver0.9.11+dfsg-1.2
debian 12libvncserver0.9.11+dfsg-1.2
debian 13libvncserver0.9.11+dfsg-1.2
debian 14libvncserver0.9.11+dfsg-1.2
debian 8italc, libvncserver1:2.0.2+dfsg1-2+deb8u1 and 1 more
debian 9libvncserver0.9.11+dfsg-1.3~deb9u1
echolibvncserver0.9.11+dfsg-1.2
ubuntu 14.04libvncserver0.9.9+dfsg-1ubuntu1.4
ubuntu 16.04libvncserver0.9.10+dfsg-3ubuntu0.16.04.3
ubuntu 16.04-ESMlibvncserver0.9.10+dfsg-3ubuntu0.16.04.3
ubuntu 18.04libvncserver0.9.11+dfsg-1ubuntu1.1
ubuntu 18.04-ESMlibvncserver0.9.11+dfsg-1ubuntu1.1
Show all 14 entries from 13 sources
SourcePackageFixed in
debian 11libvncserver0.9.11+dfsg-1.2
debian 12libvncserver0.9.11+dfsg-1.2
debian 13libvncserver0.9.11+dfsg-1.2
debian 14libvncserver0.9.11+dfsg-1.2
debian 8italc1:2.0.2+dfsg1-2+deb8u1
debian 8libvncserver0.9.9+dfsg2-6.1+deb8u5
debian 9libvncserver0.9.11+dfsg-1.3~deb9u1
echolibvncserver0.9.11+dfsg-1.2
ubuntu 14.04libvncserver0.9.9+dfsg-1ubuntu1.4
ubuntu 16.04libvncserver0.9.10+dfsg-3ubuntu0.16.04.3
ubuntu 16.04-ESMlibvncserver0.9.10+dfsg-3ubuntu0.16.04.3
ubuntu 18.04libvncserver0.9.11+dfsg-1ubuntu1.1
ubuntu 18.04-ESMlibvncserver0.9.11+dfsg-1ubuntu1.1
ubuntu 18.10libvncserver0.9.11+dfsg-1.1ubuntu0.1

References

All 9 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.