Which products and versions are affected by CVE-2007-1749?

Affected: Internet Explorer (Microsoft) versions 5.01, 6, 7. The full list is in the CVE brief.

Is CVE-2007-1749 being exploited in the wild?

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

Is CVE-2007-1749 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-2007-1749?

Public exploit code is available.

Is there a fix for CVE-2007-1749?

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

How urgently should CVE-2007-1749 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Request A Demo

WatchlistCritical

CVE-2007-1749Internet Explorer Vulnerability

Integer underflow in the CDownloadSink class code in the Vector Markup Language (VML) component (VGX.DLL), as used in Internet Explorer 5.01, 6, and 7 allows remote attackers to execute arbitrary code via compressed content with an invalid buffer size, which triggers a…

Published Aug 14, 2007 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2007-1749 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Internet Explorer (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 42% 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 public exploit code exists for a high-severity flaw.

Scores

CVSS v2

9.3

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

EPSS (30-day exploit likelihood)

42%

Higher than 98.6% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

38/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

patch26409
patch25310

Description

Affected Products

3 affected entries in total

Product	Affected versions	Fixed in
Internet ExplorerMicrosoft	5.01, 6, 7	n/a

Timeline

Publicly disclosed
Aug 14, 2007
Last updated
Apr 22, 2026

References

patch26409
patch25310
exploitExploitDB-30494
otherresearch.eeye.com · AD20070814a.html
otherMS07-050

7 more references in the full CVE brief

FAQ

Common Questions.

Integer underflow in the CDownloadSink class code in the Vector Markup Language (VML) component (VGX.DLL), as used in Internet Explorer 5.01, 6, and 7 allows remote attackers to execute arbitrary code via compressed content with an invalid buffer size, which triggers a heap-based buffer overflow.
Affected: Internet Explorer (Microsoft) versions 5.01, 6, 7. 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.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Is CVE-2007-1749 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.