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CVE-2005-0688Windows 2003 Server Vulnerability

Windows Server 2003 and XP SP2, with Windows Firewall turned off, allows remote attackers to cause a denial of service (CPU consumption) via a TCP packet with the SYN flag set and the same destination and source address and port, aka a reoccurrence of the "Land" vulnerability…

Published Mar 5, 2005 · Updated Apr 15, 2026

Key Facts

Routine patching
  • CVE-2005-0688 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Windows 2003 Server (Microsoft), Windows Xp (Microsoft).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 47% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Scores

CVSS v2

5.0

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

EPSS (30-day exploit likelihood)

47%

Higher than 98.8% 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

2

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

Windows Server 2003 and XP SP2, with Windows Firewall turned off, allows remote attackers to cause a denial of service (CPU consumption) via a TCP packet with the SYN flag set and the same destination and source address and port, aka a reoccurrence of the "Land" vulnerability (CVE-1999-0016).

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
Windows 2003 ServerMicrosoftr2n/a
Windows XpMicrosoftSee advisoryn/a

Timeline

  1. Publicly disclosed

    Mar 5, 2005

  2. Last updated

    Apr 15, 2026

References

7 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2005-0688 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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