Which products and versions are affected by CVE-2002-0649?

Affected: Data Engine (Microsoft) versions 2000; SQL Server (Microsoft) versions 2000, 2000-sp1, 2000-sp2. The full list is in the CVE brief.

Is CVE-2002-0649 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Aug 1, 2003.

Is CVE-2002-0649 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-2002-0649?

Public exploit code is available.

Is there a fix for CVE-2002-0649?

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

How urgently should CVE-2002-0649 be patched?

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

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Vulnerability Intelligence

CVE-2002-0649

HighExploitedPublic exploit

Published Aug 12, 2002 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2002-0649 is a high-severity vulnerability (CVSS 7.5 v2) affecting Data Engine (Microsoft), SQL Server (Microsoft).
It is exploited in the wild, listed in Industry KEV feed since Aug 1, 2003. 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

7.5

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

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-2002-0649 brief as a PDF

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

Description

Multiple buffer overflows in the Resolution Service for Microsoft SQL Server 2000 and Microsoft Desktop Engine 2000 (MSDE) allow remote attackers to cause a denial of service or execute arbitrary code via UDP packets to port 1434 in which (1) a 0x04 byte that causes the SQL Monitor thread to generate a long registry key name, or (2) a 0x08 byte with a long string causes heap corruption, as exploited by the Slammer/Sapphire worm.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Aug 1, 2003	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

4 affected entries in total

Product	Affected versions	Fixed in
Data EngineMicrosoft	2000	n/a
SQL ServerMicrosoft	2000, 2000-sp1, 2000-sp2	n/a

Timeline

Publicly disclosed
Aug 12, 2002
Added to Industry KEV feed
Aug 1, 2003
Last updated
Apr 15, 2026

Weakness Type

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

15 more references in the full CVE brief

FAQ

Common Questions.

Multiple buffer overflows in the Resolution Service for Microsoft SQL Server 2000 and Microsoft Desktop Engine 2000 (MSDE) allow remote attackers to cause a denial of service or execute arbitrary code via UDP packets to port 1434 in which (1) a 0x04 byte that causes the SQL Monitor thread to generate a long registry k…
Affected: Data Engine (Microsoft) versions 2000; SQL Server (Microsoft) versions 2000, 2000-sp1, 2000-sp2. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Aug 1, 2003.
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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