CVE-2009-1531
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…
- 9.3HighCVSS base score
- 35.1%Exploitation in 30 daysEPSS · top 1.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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."
Timeline
ID reserved
By microsoft
- 36 days later
· 36 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 | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 35.1% · top 1.5% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Affected products
n/a
- affected n/a
References
References9
- ADV-2009-1538 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- MS09-019 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 20090610 ZDI-09-039: Microsoft Internet Explorer onreadystatechange Memory Corruption Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.zerodayinitiative.com/advisories/ZDI-09-039 (opens in a new tab)x_refsource_MISCx_transferred
- 35234 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- oval:org.mitre.oval:def:6308 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 54950 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- TA09-160A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 1022350 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_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-2009-1527 (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-2009-1531)Record last updated .