Which products and versions are affected by CVE-2009-0075?

Affected: Internet Explorer (Microsoft) versions 7. The full list is in the CVE brief.

Is CVE-2009-0075 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since May 1, 2010.

Is CVE-2009-0075 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-2009-0075?

Public exploit code is available.

Is there a fix for CVE-2009-0075?

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

How urgently should CVE-2009-0075 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2009-0075

CriticalExploitedPublic exploit

Microsoft Internet Explorer 7 does not properly handle errors during attempted access to deleted objects, which allows remote attackers to execute arbitrary code via a crafted HTML document, related to CFunctionPointer and the appending of document objects, aka "Uninitialized…

Published Feb 10, 2009 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2009-0075 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Internet Explorer (Microsoft).
It is exploited in the wild, listed in Industry KEV feed since May 1, 2010. Public exploit code is available.
EPSS estimates a 85% 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 listed as exploited in the wild.

CVSS v2

9.3

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

EPSS (30-day exploit likelihood)

85%

Higher than 99.7% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2009-0075 brief as a PDF

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

Description

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	May 1, 2010	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Internet ExplorerMicrosoft	7	n/a

Timeline

Publicly disclosed
Feb 10, 2009
Added to Industry KEV feed
May 1, 2010
Last updated
Apr 22, 2026

Weakness Type

CWE-399

References

advisoryoval:org.mitre.oval:def:6000
advisory8077
advisory8079
advisory8080
advisory8082

12 more references in the full CVE brief

FAQ

Common Questions.

Microsoft Internet Explorer 7 does not properly handle errors during attempted access to deleted objects, which allows remote attackers to execute arbitrary code via a crafted HTML document, related to CFunctionPointer and the appending of document objects, aka "Uninitialized Memory Corruption Vulnerability."
Affected: Internet Explorer (Microsoft) versions 7. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since May 1, 2010.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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