CVE-2019-15691
7.2 · HIGHOverview
CVE-2019-15691 is a high-severity vulnerability affecting tigervnc tigervnc. It was published on December 26, 2019 and has a CVSS 3.1 base score of 7.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Remediation
Check the references section for vendor advisories and patches from tigervnc. Update tigervnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| tigervnc | tigervnc | >= 0, < 1.10.1 | Affected |
References
Frequently Asked Questions
What is CVE-2019-15691?
CVE-2019-15691 is a high-severity vulnerability affecting tigervnc tigervnc. It was published on December 26, 2019 and has a CVSS 3.1 base score of 7.2 (HIGH).
How severe is CVE-2019-15691?
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2019-15691?
Check the references section for vendor advisories and patches from tigervnc. Update tigervnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-15691?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-15691 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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