Home/CVE/Microsoft Internet Explorer 5.01 SP4, 6, 6 SP1, 7, and 8 does not properly handle argument validation for unspecified va
CVE

CVE-2009-2529

Microsoft Internet Explorer 5.01 SP4, 6, 6 SP1, 7, and 8 does not properly handle argument validation for unspecified va

Microsoft Internet Explorer 5.01 SP4, 6, 6 SP1, 7, and 8 does not properly handle argument validation for unspecified variables, which allows remote attackers to execute arbitrary code via a crafted HTML document, aka "HTML Component Handling Vulnerability.".

HIGH · CVSS 8.1 EPSS 0.19786
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
▤

Affected Products & Versions

7
microsoft internet explorerall versions
microsoft windows 2000all versions
microsoft windows server 2003all versions
microsoft windows xpall versions
microsoft windows server 2008all versions
microsoft windows vistaall versions
microsoft windows 7all versions
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumInternet Explorer DisableFirstRunCustomize Enabled
productmediumInternet Explorer Autorun Keys Modification
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Oct 2009 · 10:30 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.us-cert.gov/cas/techalerts/TA09-286A.htmlUS Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-054
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6419
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