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CVE-2019-15683

39
FAUCET Score

CVE-2019-15683 is a critical stack buffer overflow vulnerability affecting TurboVNC servers, specifically in commits prior to cea98166008301e614e0d36776bf9435a536136e. This flaw, rated 9.8 Critical on CVSSv3.1, allows for remote code execution with high impact on confidentiality, integrity, and availability, despite requiring prior authorization on the server. While the attack is network-exploitable with low complexity, there is currently no evidence of active exploitation, nor are public exploit modules available in Metasploit or Nuclei. However, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.3CPE matchmatch criteria
cpe:2.3:a:turbovnc:turbovnc:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
19.39%
Probability of exploitation in next 30 days
EPSS Percentile
97.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1939 is in the 93rd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / TurboVNC/turbovnc/commit/cea98166008301e614e0d36776bf9435a536136e
PatchThird Party Advisory