high Known exploitedREV. 01

CVE-2010-3962Internet Explorer — style handling use-after-free (2010)

Internet Explorer 6, 7 and 8 use memory after releasing it while handling a style sheet clip attribute, so a crafted page runs the attacker's code. Exploited in the wild from November 2010; the browser is end-of-life.

YOUR NEXT MOVE

Retire Internet Explorer — it is end-of-life and no further fix will come; the 2010 update was the last one issued for this flaw.

Read the risk

THE VITAL STATS
CVSS score
8.1/ 10
CVSS v3.1
EPSS probability
97%
Likelihood of exploitation
Attack complexity
High
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2010-11-05
Added to KEV
2025-10-06
Exploit published
Not recorded
Confidence
high
Kill chain
execution
MITRE ATT&CK
T1203
Severity
high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attacker needsThe user must open an attacker-controlled page in Internet Explorer 6, 7 or 8.

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2010-3962 · CRDS 0.1 · Issued 2026-09-24