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CVE

CVE-2010-3962

Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerability

Use-after-free vulnerability in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code via vectors related to Cascading Style Sheets (CSS) token sequences and the clip attribute, aka an "invalid flag reference" issue or "Uninitialized Memory Corruption Vulnerability," as exploited in the wild in November 2010.

HIGH · CVSS 8.1 ⚠ CISA KEV EPSS 0.89683
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  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules12 YARA rules0
⬢

Required Remediation

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

◆

Threat Actors Linked

1
actorAPT3
⬡

Weakness Classification

CWE-416Use After Free
CWE-416Use After Free
▤

Affected Products & Versions

1
microsoft internet explorerall versions
⚠

Public Exploits & PoCs

5
remoteMicrosoft Internet Explorer - CSS SetUserClip Memory Corruption (MS10-090) (Metasploit)verified
dosMicrosoft Internet Explorer - Memory Corruptionverified
remoteMicrosoft Internet Explorer 6/7/8 - Memory Corruptionverified
pocwww.exploit-db.com · 15418www.exploit-db.com
pocwww.exploit-db.com · 15421www.exploit-db.com
◈

Sigma Hunt Rules

12
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumInternet Explorer DisableFirstRunCustomize Enabled
productmediumInternet Explorer Autorun Keys Modification
relatedcriticalAntivirus Password Dumper Detection
relatedcriticalHacktool Execution - Imphash
relatedcriticalHackTool - Rubeus Execution
relatedcriticalPotential Credential Dumping Via LSASS Process Clone
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Nov 2010 · 05:00 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisaKEV-CVE-2010-3962
🔗

References & Sources

13
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspxVendor Advisory
http://secunia.com/advisories/42091Broken LinkVendor Advisory
http://www.kb.cert.org/vuls/id/899748Third Party AdvisoryUS Government Resource
http://www.microsoft.com/technet/security/advisory/2458511.mspxPatchVendor Advisory
http://www.securityfocus.com/bid/44536Broken LinkThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1024676Broken LinkThird Party AdvisoryVDB Entry
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