Is CVE-2019-15683 actively exploited?

No active exploitation of CVE-2019-15683 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-15683 be exploited remotely?

Yes. CVE-2019-15683 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-15683?

CVE-2019-15683 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-15683

CRITICAL

CVE-2019-15683

CWE-121Published: October 29, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

TurboVNC server code contains stack buffer overflow vulnerability in commit prior to cea98166008301e614e0d36776bf9435a536136e. This could possibly result into remote code execution, since stack frame is not protected with stack canary. This attack appear to be exploitable via network connectivity. To exploit this vulnerability authorization on server is required. These issues have been fixed in commit cea98166008301e614e0d36776bf9435a536136e.

NVD Source

Technical Analysis

CVE-2019-15683 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.