CVE-2019-15693

Name: CVE-2019-15693
Creator: NVD / NIST
Published: 2019-12-26T15:15:11.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 4.28%

Last modified Jun 17, 2026

CVE-2019-15693 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could potentially result into remote code execution. EPSS estimates a 4.28% chance of exploitation in the next 30 days.

Description

TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

4.28%

89.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tigervnc	Tigervnc	< 1.10.1

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.htmlBroken Link
https://github.com/CendioOssman/tigervnc/commit/b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95Patch, Third Party Advisory
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1Release Notes, Third Party Advisory
https://www.openwall.com/lists/oss-security/2019/12/20/2Exploit, Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.htmlBroken Link
https://github.com/CendioOssman/tigervnc/commit/b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95Patch, Third Party Advisory
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1Release Notes, Third Party Advisory
https://www.openwall.com/lists/oss-security/2019/12/20/2Exploit, Mailing List, Third Party Advisory

Timeline

Published: Dec 26, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-15693?

How severe is CVE-2019-15693?

CVE-2019-15693 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 4.28% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15693?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-15693?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST