Which products and versions are affected by CVE-2012-0155?

Affected: Internet Explorer (Microsoft) versions 9. The full list is in the CVE brief.

Is CVE-2012-0155 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2012-0155 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2012-0155?

No public exploit code is known.

Is there a fix for CVE-2012-0155?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2012-0155 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2012-0155

Critical

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

Published Feb 14, 2012 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2012-0155 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Internet Explorer (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 65% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

65%

Higher than 99.2% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2012-0155 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Internet ExplorerMicrosoft	9	n/a

Timeline

Publicly disclosed
Feb 14, 2012
Last updated
Apr 28, 2026

Weakness Type

CWE-94 Improper Control of Generation of Code ('Code Injection')

References

FAQ

Common Questions.

Microsoft Internet Explorer 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "VML Remote Code Execution Vulnerability."
Affected: Internet Explorer (Microsoft) versions 9. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2012-0155 Running On Your Attack Surface?

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