What’s Vulnerable › Vulnerabilities

CVE-2019-15693

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-12-26 · updated 2026-06-17
• Weakness: CWE-122

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.

Affected products

• Kaspersky TigerVNC: before 1.10.1 — fixed in 1.10.1

How to fix

Upgrade to a fixed version: Kaspersky TigerVNC 1.10.1. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html
• https://github.com/CendioOssman/tigervnc/commit/b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95
• https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1
• https://www.openwall.com/lists/oss-security/2019/12/20/2
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html
• https://github.com/CendioOssman/tigervnc/commit/b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95
• https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1
• https://www.openwall.com/lists/oss-security/2019/12/20/2

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