CVE-2009-3616

Name: CVE-2009-3616
Creator: NVD / NIST
Published: 2009-10-23T18:30:00.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 3.88%

Last modified Jun 16, 2026

CVE-2009-3616 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities.. EPSS estimates a 3.88% chance of exploitation in the next 30 days.

Description

Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities.

Metrics

CVSS 3.1

9.9/10

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

EPSS Probability

3.88%

88.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 0.10.6
Redhat	Enterprise Linux Server	5.0
Redhat	Enterprise Linux Workstation	5.0

References

http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5Broken Link, Exploit
http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331Broken Link, Exploit
http://marc.info/?l=qemu-devel&m=124324043812915Mailing List
http://rhn.redhat.com/errata/RHEA-2009-1272.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2009/10/16/5Mailing List, Patch
http://www.openwall.com/lists/oss-security/2009/10/16/8Mailing List, Patch
http://www.securityfocus.com/bid/36716Broken Link, Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=501131Issue Tracking, Patch
https://bugzilla.redhat.com/show_bug.cgi?id=505641Exploit, Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=508567Issue Tracking
http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5Broken Link, Exploit
http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331Broken Link, Exploit
http://marc.info/?l=qemu-devel&m=124324043812915Mailing List
http://rhn.redhat.com/errata/RHEA-2009-1272.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2009/10/16/5Mailing List, Patch
http://www.openwall.com/lists/oss-security/2009/10/16/8Mailing List, Patch
http://www.securityfocus.com/bid/36716Broken Link, Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=501131Issue Tracking, Patch
https://bugzilla.redhat.com/show_bug.cgi?id=505641Exploit, Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=508567Issue Tracking

Timeline

Published: Oct 23, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-3616?

How severe is CVE-2009-3616?

CVE-2009-3616 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 3.88% probability of exploitation in the next 30 days.

How do I fix CVE-2009-3616?

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-2009-3616?

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

Scan your code now

Source: NVD / NIST