RCE in Microsoft Internet Explorer
CVE-2009-2531
Microsoft Internet Explorer 6, 6 SP1, 7, and 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "Uninitialized Memory Corruption Vulnerability," a different vulnerability than CVE-2009-2530.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.229 (97.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.229 · newest: 0.229 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-054 (vendor-advisory)
- www.us-cert.gov/cas/techalerts/TA09-286A.html (US Government Resource, third-party-advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:5766 (signature, vdb-entry)
Frequently asked questions
- What is CVE-2009-2531?
- CVE-2009-2531 is a vulnerability in Microsoft Internet Explorer, classified under Code Injection. Published 2009-10-14.
- Is CVE-2009-2531 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.