CVE-2010-5304

Name: CVE-2010-5304
Creator: NVD / NIST
Published: 2020-02-05T20:15:10.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.12%

Last modified Jun 16, 2026

CVE-2010-5304 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A NULL pointer dereference flaw was found in the way LibVNCServer before 0.9.9 handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client.. EPSS estimates a 3.12% chance of exploitation in the next 30 days.

Description

A NULL pointer dereference flaw was found in the way LibVNCServer before 0.9.9 handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

3.12%

86.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Libvncserver Project	Libvncserver	< 0.9.9
Fedoraproject	Fedora	19
Fedoraproject	Fedora	20
Fedoraproject	Fedora	21

References

http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139814.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140219.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.htmlMailing List, Third Party Advisory
http://seclists.org/oss-sec/2014/q3/639Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/09/23/6Mailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139814.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140219.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.htmlMailing List, Third Party Advisory
http://seclists.org/oss-sec/2014/q3/639Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/09/23/6Mailing List, Third Party Advisory

Timeline

Published: Feb 5, 2020
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2010-5304?

How severe is CVE-2010-5304?

CVE-2010-5304 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.12% probability of exploitation in the next 30 days.

How do I fix CVE-2010-5304?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2010-5304?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST