Use-after-free vulnerability in the CSharedStyleSheet::Notify function in the Cascading Style Sheets (CSS) parser in mshtml.dll, as used in Microsoft Internet Explorer 6 through 8 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a self-referential @import rule in a stylesheet, aka "CSS Memory Corruption Vulnerability."
Published 2010-12-22 21:00:18
Updated 2021-07-23 15:12:31
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionExecute codeDenial of service

Exploit prediction scoring system (EPSS) score for CVE-2010-3971

Probability of exploitation activity in the next 30 days: 97.18%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 100 % EPSS Score History EPSS FAQ

Metasploit modules for CVE-2010-3971

  • MS11-003 Microsoft Internet Explorer CSS Recursive Import Use After Free
    Disclosure Date: 2010-11-29
    First seen: 2020-04-26
    exploit/windows/browser/ms11_003_ie_css_import
    This module exploits a memory corruption vulnerability within Microsoft\'s HTML engine (mshtml). When parsing an HTML page containing a recursive CSS import, a C++ object is deleted and later reused. This leads to arbitrary code execution. This exploit uti

CVSS scores for CVE-2010-3971

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
9.3
HIGH AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6
10.0
NIST

CWE ids for CVE-2010-3971

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2010-3971

Products affected by CVE-2010-3971

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