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    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:Mar 10, 2011
    Last Modified:Apr 11, 2025
    EPS:Mar 10, 2011
    EPSS Score:0.50604
    CVSS Score:9.3

    Affected Products

    Vendor
    Microsoft
    Product
    Internet Explorer
    Vendor
    Microsoft
    Product
    Windows 7

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2021-26419 (CVSS 7.5) — Scripting Engine Memory Corruption Vulnerability…
    CVE-2021-27085 (CVSS 8.8) — Internet Explorer Remote Code Execution Vulnerability…
    CVE-2021-26411 (CVSS 8.8) — Internet Explorer Memory Corruption Vulnerability…
    CVE-2020-17058 (CVSS 7.5) — Microsoft Browser Memory Corruption Vulnerability…
    CVE-2020-17053 (CVSS 7.5) — Internet Explorer Memory Corruption Vulnerability…
    CVE-2020-17052 (CVSS 7.5) — Scripting Engine Memory Corruption Vulnerability…
    CVE-2020-1506 (CVSS 6.1) — <p>An elevation of privilege vulnerability exists in the way that the Wininit.dll handles objects in memory. A…
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    References

    http://dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011
    http://twitter.com/aaronportnoy/statuses/45642180118855680
    http://twitter.com/msftsecresponse/statuses/45646985998516224
    http://www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own
    http://www.securityfocus.com/bid/46821
    http://www.securitytracker.com/id?1025327
    http://www.us-cert.gov/cas/techalerts/TA11-102A.html
    http://www.zdnet.com/blog/security/pwn2own-2011-ie8-on-windows-7-hijacked-with-3-vulnerabilities/8367
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-018
    https://exchange.xforce.ibmcloud.com/vulnerabilities/66062
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12228
    https://threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011
    http://dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011
    http://twitter.com/aaronportnoy/statuses/45642180118855680
    http://twitter.com/msftsecresponse/statuses/45646985998516224
    http://www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own
    http://www.securityfocus.com/bid/46821
    http://www.securitytracker.com/id?1025327
    http://www.us-cert.gov/cas/techalerts/TA11-102A.html
    http://www.zdnet.com/blog/security/pwn2own-2011-ie8-on-windows-7-hijacked-with-3-vulnerabilities/8367
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-018
    https://exchange.xforce.ibmcloud.com/vulnerabilities/66062
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12228
    https://threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High