Is CVE-2014-6052 in the CISA KEV catalog?

No. CVE-2014-6052 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-6052?

CVE-2014-6052 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2014-6052?

CVE-2014-6052 has an EPSS score of 6.75% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-6052?

Upgrade libvncserver on debian 11 to 0.9.9+dfsg-6.1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2014-6052

HIGHEPSS 93th pctl

7.5

CVSS v2

NVD

Description

The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.

CWE-20Improper Input Validation

How to fix

Remediation Available

libvncserverDebian

Fixed in:0.9.9+dfsg-6.1CVE-2014-6052

italcUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

italc-clientUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

italc-masterUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

libitalccoreUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

libvncserverUbuntu

Fixed in:0.9.9+dfsg-1ubuntu1.1USN-2365-1

libvncserver0Ubuntu

Fixed in:0.9.9+dfsg-1ubuntu1.1USN-2365-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

6.75%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory8

Other references5

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.