CVE-2012-3956
Use-after-free vulnerability in the MediaStreamGraphThreadRunnable::Run function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Use-after-free vulnerability in the MediaStreamGraphThreadRunnable::Run function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
- CVSS 2.0
- 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 5.41% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mozilla/firefox · mozilla/seamonkey · mozilla/thunderbird · mozilla/thunderbird esr · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server · suse/linux enterprise software development kit · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server eus · redhat/enterprise linux workstation · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 5.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1210.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1211.htmlThird Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-58.htmlVendor Advisory
- http://www.securityfocus.com/bid/55320Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1548-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1548-2Third Party Advisory
- http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdfThird Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=774597Issue Tracking, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16997Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1210.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1211.htmlThird Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-58.htmlVendor Advisory
- http://www.securityfocus.com/bid/55320Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1548-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1548-2Third Party Advisory
- http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdfThird Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=774597Issue Tracking, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16997Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.