Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "Layout Use After Free Vulnerability."
Published Sep 21, 2012
9.3
HIGHCVSS 2.0
EPSS 19.50%
Description
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "Layout Use After Free Vulnerability."
Affected products
No data.
- 9
- 9
- 9
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 19.50% (0.19496) | 97.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 19.50% (0.19496) | 97.02th | v5 (v2026.06.15) |
| Mar 30, 2025 | 36.89% (0.36887) | 96.83th | v4 (v2025.03.14) |
| Mar 29, 2025 | 34.65% (0.34652) | 95.36th | v4 (v2025.03.14) |
| Mar 19, 2025 | 36.89% (0.36887) | 96.68th | v4 (v2025.03.14) |
| Mar 17, 2025 | 40.32% (0.40322) | 97.02th | v4 (v2025.03.14) |
| Jan 28, 2025 | 92.81% (0.92807) | 99.26th | v3 (v2023.03.01) |
| Dec 17, 2024 | 89.37% (0.89366) | 99.00th | v3 (v2023.03.01) |
| Dec 4, 2024 | 85.37% (0.85368) | 98.64th | v3 (v2023.03.01) |
| Oct 10, 2024 | 82.07% (0.82074) | 98.45th | v3 (v2023.03.01) |
| Aug 17, 2024 | 73.37% (0.73369) | 98.17th | v3 (v2023.03.01) |
| Jun 20, 2024 | 79.78% (0.79781) | 98.31th | v3 (v2023.03.01) |
| Oct 16, 2023 | 81.22% (0.81221) | 97.96th | v3 (v2023.03.01) |
| Aug 12, 2023 | 70.13% (0.70125) | 97.58th | v3 (v2023.03.01) |
| Apr 9, 2023 | 70.12% (0.70117) | 97.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 67.99% (0.67990) | 97.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 40.19% (0.40188) | 98.15th | v2 (v2022.01.01) |
| Feb 4, 2022 | 40.19% (0.40188) | 97.41th | v2 (v2022.01.01) |
References (5)
- http://www.securityfocus.com/bid/55646 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1027555 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA12-255A.html third-party-advisoryx_refsource_CERTUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-063 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15449 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/55646 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1027555 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA12-255A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-063 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15449 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.