THREATPORT/VULNERABILITY/CVE-2019-15695
HIGH SEVERITY

CVE-2019-15695

Tigervnc vulnerability

CVSS
7.2
EPSS
4.5%
EPSS pct
90th
Exploited
No known
TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values, exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Affected vendor
Tigervnc
Affected product
Tigervnc
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2019-12-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2019-15695

  • Confirm whether Tigervnc Tigervnc is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-15695.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-15695

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-15695 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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