Which products and versions are affected by CVE-2007-1751?

Affected: Internet Explorer (Microsoft) versions 5.01-sp4, 6, 6-sp1, 7.0. The full list is in the CVE brief.

Is CVE-2007-1751 being exploited in the wild?

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

Is CVE-2007-1751 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-2007-1751?

No public exploit code is known.

Is there a fix for CVE-2007-1751?

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

How urgently should CVE-2007-1751 be patched?

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

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Vulnerability Intelligence

CVE-2007-1751

Critical

Microsoft Internet Explorer 5.01, 6, and 7 allows remote attackers to execute arbitrary code by causing Internet Explorer to access an uninitialized or deleted object, related to prototype variables and table cells, aka "Uninitialized Memory Corruption Vulnerability."

Published Jun 12, 2007 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2007-1751 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 61% 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)

61%

Higher than 99.1% 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-2007-1751 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

4 affected entries in total

Product	Affected versions	Fixed in
Internet ExplorerMicrosoft	5.01-sp4, 6, 6-sp1, 7.0	n/a

Timeline

Publicly disclosed
Jun 12, 2007
Last updated
Apr 22, 2026

Weakness Type

CWE-908 Use of Uninitialized Resource

References

advisory25627
advisory1018235
advisoryie-uninitialized-object-code-execution(34626)
advisory20070612 ZDI-07-038: Microsoft Internet Explorer Prototype Dereference Code Execution Vulnerability
advisorySSRT071438

7 more references in the full CVE brief

FAQ

Common Questions.

Microsoft Internet Explorer 5.01, 6, and 7 allows remote attackers to execute arbitrary code by causing Internet Explorer to access an uninitialized or deleted object, related to prototype variables and table cells, aka "Uninitialized Memory Corruption Vulnerability."
Affected: Internet Explorer (Microsoft) versions 5.01-sp4, 6, 6-sp1, 7.0. 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-2007-1751 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.