Vulnerability in Microsoft Internet Explorer
CVE-2011-1345
Microsoft Internet Explorer 6, 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, as demonstrated by Stephen Fewer as the first of three chained vulnerabilities during a Pwn2Own competition at CanSecWest 2011, aka "Object Management Memory Corruption Vulnerability."
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: 0.409 (98.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.409 · newest: 0.409 · change: 0.000
Affected products
- Microsoft Internet Explorer — versions 8
- Microsoft Windows 7
Public proof-of-concept exploits
References
- www.us-cert.gov/cas/techalerts/TA11-102A.html (US Government Resource, third-party-advisory)
- twitter.com/msftsecresponse/statuses/45646985998516224
- twitter.com/aaronportnoy/statuses/45642180118855680
- www.securitytracker.com/id (vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-018 (vendor-advisory)
- dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011
- www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own
- www.securityfocus.com/bid/46821 (vdb-entry)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:12228 (signature, vdb-entry)
- threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011
Frequently asked questions
- What is CVE-2011-1345?
- CVE-2011-1345 is a vulnerability in Microsoft Internet Explorer. Published 2011-03-10.
- Is CVE-2011-1345 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.