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Vulnerability record · CVE-2019-15681 · published 29 October 2019

CVE-2019-15681: Libvnc project libvncserver vulnerability

LLibvnc Project · Libvncserver

LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.

7.5 CVSS 3.1 High EPSS 2.9% · top 13.5% CWE-665 · CWE-665
7.5CVSS 3.1 base score, v2 5.0
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
24References
17 Jun 2026Last modified by NVD

Description

LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00073.html Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00039.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html Mailing ListThird Party Advisory
https://usn.ubuntu.com/4407-1/ Third Party Advisory
https://usn.ubuntu.com/4547-1/ Third Party Advisory
https://usn.ubuntu.com/4573-1/ Third Party Advisory
https://usn.ubuntu.com/4587-1/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00073.html Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00039.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html Mailing ListThird Party Advisory
https://usn.ubuntu.com/4407-1/ Third Party Advisory
https://usn.ubuntu.com/4547-1/ Third Party Advisory
https://usn.ubuntu.com/4573-1/ Third Party Advisory
https://usn.ubuntu.com/4587-1/ Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-15681), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.