VIR Vulnerability Intelligence Relay

CVE-2012-1878

critical
Published 2012-06-12 · Modified 2026-04-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
9.3

Description

Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "OnBeforeDeactivate Event Remote Code Execution Vulnerability."

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
OSVersionStatusFixed in
windows windowsnot-affected
windows windows-not-affected
windows windowsr2not-affected

Application impact
VendorProductVersionsFixed
windows microsoftinternet_explorer6
windows microsoftinternet_explorer7
windows microsoftinternet_explorer8
windows microsoftinternet_explorer9

References

CWEs

CWE-94

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.