{"id":"CVE-2009-3616","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-3616","generatedAt":"2026-10-27T19:39:23.594Z","title":"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…","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.","published":"2009-10-23T18:30:00.000Z","lastModified":"2026-06-16T23:12:02.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["qemu/qemu","redhat/enterprise linux server","redhat/enterprise linux workstation"],"epss":{"score":0.03875,"percentile":0.90135,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (3.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5","tags":["Broken Link","Exploit"],"source":"secalert@redhat.com"},{"url":"http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331","tags":["Broken Link","Exploit"],"source":"secalert@redhat.com"},{"url":"http://marc.info/?l=qemu-devel&m=124324043812915","tags":["Mailing List"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHEA-2009-1272.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2009/10/16/5","tags":["Mailing List","Patch"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2009/10/16/8","tags":["Mailing List","Patch"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/36716","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=501131","tags":["Issue Tracking","Patch"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=505641","tags":["Exploit","Issue Tracking"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=508567","tags":["Issue Tracking"],"source":"secalert@redhat.com"},{"url":"http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5","tags":["Broken Link","Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331","tags":["Broken Link","Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=qemu-devel&m=124324043812915","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHEA-2009-1272.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2009/10/16/5","tags":["Mailing List","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2009/10/16/8","tags":["Mailing List","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/36716","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=501131","tags":["Issue Tracking","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=505641","tags":["Exploit","Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=508567","tags":["Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-3616","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}