HIGH
Microsoft Internet Explorer 7 for Windows XP SP2 and SP3; 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 allows remote attackers to execute arbitrary code via frequent calls to the getElementsByTagName function combined with the creation of an object during reordering of elements, followed by an onreadystatechange event, which triggers an access of an object that (1) was not properly initialized or (2) is deleted, aka "HTML Object Memory Corruption Vulnerability."
Published Jun 10, 2009
9.3
HIGHCVSS 2.0
EPSS 35.07%
Description
Microsoft Internet Explorer 7 for Windows XP SP2 and SP3; 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 allows remote attackers to execute arbitrary code via frequent calls to the getElementsByTagName function combined with the creation of an object during reordering of elements, followed by an onreadystatechange event, which triggers an access of an object that (1) was not properly initialized or (2) is deleted, aka "HTML Object Memory Corruption Vulnerability."
Affected products
No data.
AND
- 7
Running on/with
OR
- n/a
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- gold
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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.
9.3 HIGH NVD
AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
35.07% 0.35074
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.35074
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 (32 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 35.07% (0.35074) | 98.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 35.07% (0.35074) | 98.23th | v5 (v2026.06.15) |
| Feb 28, 2026 | 61.25% (0.61250) | 98.28th | v4 (v2025.03.14) |
| Dec 28, 2025 | 69.69% (0.69685) | 98.60th | v4 (v2025.03.14) |
| Dec 27, 2025 | 66.76% (0.66757) | 98.49th | v4 (v2025.03.14) |
| Oct 28, 2025 | 68.89% (0.68888) | 98.55th | v4 (v2025.03.14) |
| Oct 27, 2025 | 65.90% (0.65895) | 98.44th | v4 (v2025.03.14) |
| Oct 1, 2025 | 68.89% (0.68888) | 98.59th | v4 (v2025.03.14) |
| Mar 30, 2025 | 65.90% (0.65895) | 98.37th | v4 (v2025.03.14) |
| Mar 29, 2025 | 58.75% (0.58754) | 97.43th | v4 (v2025.03.14) |
| Mar 17, 2025 | 65.90% (0.65895) | 98.37th | v4 (v2025.03.14) |
| Mar 1, 2025 | 66.04% (0.66044) | 98.15th | v3 (v2023.03.01) |
| Jan 24, 2025 | 64.80% (0.64796) | 98.08th | v3 (v2023.03.01) |
| Dec 19, 2024 | 69.56% (0.69562) | 98.19th | v3 (v2023.03.01) |
| Dec 17, 2024 | 71.62% (0.71623) | 98.25th | v3 (v2023.03.01) |
| Dec 12, 2024 | 88.11% (0.88110) | 98.80th | v3 (v2023.03.01) |
| Oct 7, 2024 | 88.49% (0.88486) | 98.79th | v3 (v2023.03.01) |
| May 17, 2024 | 90.43% (0.90429) | 98.80th | v3 (v2023.03.01) |
| Dec 9, 2023 | 92.47% (0.92473) | 98.75th | v3 (v2023.03.01) |
| Oct 28, 2023 | 93.54% (0.93542) | 98.83th | v3 (v2023.03.01) |
| Jul 29, 2023 | 93.80% (0.93802) | 98.75th | v3 (v2023.03.01) |
| Apr 29, 2023 | 91.53% (0.91530) | 98.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 86.81% (0.86813) | 97.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 46.72% (0.46718) | 98.56th | v2 (v2022.01.01) |
| Nov 11, 2022 | 46.72% (0.46718) | 98.49th | v2 (v2022.01.01) |
| Sep 10, 2022 | 49.76% (0.49756) | 98.63th | v2 (v2022.01.01) |
| Jul 18, 2022 | 55.10% (0.55095) | 98.72th | v2 (v2022.01.01) |
| Jul 17, 2022 | 9.92% (0.09915) | 94.34th | v2 (v2022.01.01) |
| Jul 9, 2022 | 55.10% (0.55095) | 98.71th | v2 (v2022.01.01) |
| May 5, 2022 | 57.79% (0.57789) | 98.73th | v2 (v2022.01.01) |
| Mar 1, 2022 | 60.01% (0.60013) | 98.64th | v2 (v2022.01.01) |
| Feb 4, 2022 | 67.16% (0.67160) | 98.89th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://osvdb.org/54950 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/archive/1/504216/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/35234 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1022350 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA09-160A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2009/1538 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.zerodayinitiative.com/advisories/ZDI-09-039 x_refsource_MISC
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-019 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6308 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/54950 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/archive/1/504216/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/35234 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1022350 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA09-160A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| http://www.vupen.com/english/advisories/2009/1538 | vdb-entryx_refsource_VUPENVendor Advisory | |
| http://www.zerodayinitiative.com/advisories/ZDI-09-039 | x_refsource_MISC | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-019 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6308 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Jun 10, 2009
Updated Aug 7, 2024
Reserved May 5, 2009
Link CVE-2009-1531
CISA Vulnrichment
Updated n/a