CVE-2010-3962
KEVMicrosoft Internet Explorer Uninitialized Memory Corruption Vulnerability
Description
Microsoft Internet Explorer contains an uninitialized memory corruption vulnerability that could allow for remote code execution. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
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.
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HPublishedNov 5, 2010
Last modifiedJun 16, 2026
Added to KEVOct 6, 2025
Remediation dueOct 27, 2025
References
- blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspxVendor Advisory
- secunia.com/advisories/42091Broken LinkVendor Advisory
- exploit-db.com/exploits/15418Third Party AdvisoryVDB Entry
- exploit-db.com/exploits/15421Third Party AdvisoryVDB Entry
- kb.cert.org/vuls/id/899748Third Party AdvisoryUS Government Resource
- microsoft.com/technet/security/advisory/2458511.mspxPatchVendor Advisory
- securityfocus.com/bid/44536Broken LinkThird Party Advisory
- securitytracker.com/id?1024676Broken LinkThird Party Advisory
- symantec.com/connect/blogs/new-ie-0-day-used-targeted-attacksNot Applicable
- us-cert.gov/cas/techalerts/TA10-348A.htmlThird Party AdvisoryUS Government Resource
- vupen.com/english/advisories/2010/2880Broken LinkVendor Advisory
- docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-090PatchVendor Advisory
0 recent articles mention this CVE
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Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 365 days
- CVSS
- 8.1 HIGH
- EPSS (30-day exploit probability)
- 96.8% · top 1% of all CVEs
- Weakness
- CWE-416
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.