CVE-2009-3616
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…
- 9.9CriticalCVSS base score
- 3.9%Exploitation in 30 daysEPSS · top 9.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 14 days later
· 14 days later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.9% · top 9.7% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.9.
Affected products
n/a
- affected n/a
References
References10
- https://bugzilla.redhat.com/show_bug.cgi?id=501131 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20091016 Re: QEMU VNC use-after-free (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [qemu-devel] 20090525 Re: [STABLE] [BUG] VNC mode can crash QEMU (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=508567 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 36716 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://rhn.redhat.com/errata/RHEA-2009-1272.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20091016 QEMU VNC use-after-free (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=505641 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-3597 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-3616)Record last updated .