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CVE-2003-0469Windows 2000 Vulnerability

Buffer overflow in the HTML Converter (HTML32.cnv) on various Windows operating systems allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via cut-and-paste operation, as demonstrated in Internet Explorer 5.0 using a long "align"…

Published Aug 7, 2003 · Updated Apr 15, 2026

Key Facts

Patch immediately
  • CVE-2003-0469 is a high-severity vulnerability (CVSS 7.5 v2) affecting Windows 2000 (Microsoft), Windows 2003 Server (Microsoft), Windows 98 (Microsoft) and 4 more products.
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 45% 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

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

45%

Higher than 98.7% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

36/100

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

1

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

Buffer overflow in the HTML Converter (HTML32.cnv) on various Windows operating systems allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via cut-and-paste operation, as demonstrated in Internet Explorer 5.0 using a long "align" argument in an HR tag.

Affected Products

10 affected entries in total
ProductAffected versionsFixed in
Windows 2000MicrosoftSee advisoryn/a
Windows 2003 ServerMicrosoft64-bit, r2n/a
Windows 98MicrosoftSee advisoryn/a
Windows 98seMicrosoftSee advisoryn/a
Windows MeMicrosoftSee advisoryn/a
2 more affected products in the full CVE brief

Timeline

  1. Publicly disclosed

    Aug 7, 2003

  2. Last updated

    Apr 15, 2026

FAQ

Common Questions.

Is CVE-2003-0469 On Your Attack Surface?

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Figures as of Oct 20, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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