Vulnerability in Microsoft Internet Explorer
CVE-2010-3971
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 · 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: 0.817 (99.6th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.817 · newest: 0.817 · change: 0.000
Affected products
- Microsoft Internet Explorer — versions 7, 8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.kb.cert.org/vuls/id/634956 (US Government Resource, third-party-advisory)
- www.microsoft.com/technet/security/advisory/2488013.mspx
- www.exploit-db.com/exploits/15746 (Exploit, exploit)
- blogs.technet.com/b/srd/archive/2011/01/07/assessing-the-risk-of-public-issues-…
- www.breakingpointsystems.com/community/blog/ie-vulnerability/ (Exploit)
- support.avaya.com/css/P8/documents/100127294
- www.vupen.com/english/advisories/2011/0318 (vdb-entry)
- www.exploit-db.com/exploits/15708 (Exploit, exploit)
- www.vupen.com/english/advisories/2010/3156 (vdb-entry, Vendor Advisory)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-003 (vendor-advisory)
Frequently asked questions
- What is CVE-2010-3971?
- CVE-2010-3971 is a vulnerability in Microsoft Internet Explorer, classified under CWE-399. Published 2010-12-22.
- Is CVE-2010-3971 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.