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CVE-2009-3616

30
FAUCET Score

CVE-2009-3616 describes multiple use-after-free vulnerabilities in the VNC server component of QEMU versions 0.10.6 and earlier, impacting various Red Hat Enterprise Linux products. These flaws allow guest OS users to execute arbitrary code on the host OS through specific VNC client interactions, such as disconnecting during data transfer or using incorrect integer data types. With a CVSS score of 9.9 (Critical), it presents a high-impact threat with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.10.6CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.9CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.88%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0387 is in the 90th percentile among its peer group of 1,128 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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)

redhatpatch availablevia nvd_reference
View patch

References

git.savannah.gnu.org / cgit/qemu.git/commit
Broken LinkExploit
git.savannah.gnu.org / cgit/qemu.git/commit
Broken LinkExploit
marc.info
Mailing List
rhn.redhat.com / errata/RHEA-2009-1272.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatch
bugzilla.redhat.com / show_bug.cgi
ExploitIssue Tracking
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
openwall.com / lists/oss-security/2009/10/16/5
Mailing ListPatch
openwall.com / lists/oss-security/2009/10/16/8
Mailing ListPatch
securityfocus.com / bid/36716
Broken LinkThird Party AdvisoryVDB Entry