CVE-2010-3962Use-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 c…
Updated under an hour ago ()
Does this affect you?
It affects microsoft internet_explorer. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Oct 6, 2025; federal agencies had to remediate by Oct 27, 2025. Treat that date as your deadline.
Do this next
Free account, 1 product
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
- 8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Added to CISA KEV Oct 6, 2025; federal remediation due Oct 27, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 96.83% (percentile 100)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 22, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
microsoft internet_explorer microsoft:internet_explorer | 6; 7; 8 | NVD |
References
- http://www.securityfocus.com/bid/44536vdb-entry, x-refsource-bid, broken-link, third-party-advisory
- http://www.us-cert.gov/cas/techalerts/TA10-348A.htmlthird-party-advisory, x-refsource-cert, us-government-resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-090vendor-advisory, x-refsource-ms, patch
- http://www.kb.cert.org/vuls/id/899748third-party-advisory, x-refsource-cert-vn, us-government-resource
- http://secunia.com/advisories/42091third-party-advisory, x-refsource-secunia, broken-link, vendor-advisory
- http://www.vupen.com/english/advisories/2010/2880vdb-entry, x-refsource-vupen, broken-link, vendor-advisory
- http://www.microsoft.com/technet/security/advisory/2458511.mspxx-refsource-confirm, patch, vendor-advisory
- http://www.securitytracker.com/id?1024676vdb-entry, x-refsource-sectrack, broken-link, third-party-advisory
- http://www.exploit-db.com/exploits/15421exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- http://www.symantec.com/connect/blogs/new-ie-0-day-used-targeted-attacksx-refsource-misc, not-applicable
- https://exchange.xforce.ibmcloud.com/vulnerabilities/62962vdb-entry, x-refsource-xf, third-party-advisory
- http://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspxx-refsource-confirm, vendor-advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12279vdb-entry, signature, x-refsource-oval, tool-signature
- http://www.exploit-db.com/exploits/15418exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-3962us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.