CVE-2002-1831

5.0

CVSS v2.0 Base Score

22.26%

LOW RiskEPSS (98th percentile)

NVD-CWE-Other

Microsoft MSN Messenger Service 1.0 through 4.6 allows remote attackers to cause a denial of service (crash) via an invite request that contains hex-encoded spaces (%20) in the Invitation-Cookie field.

Published: 12/31/2002

Modified: 6/16/2026

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Vulnerability Summary

CVSS v2 Score

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

EPSS Score (Exploitation Probability)

22.26%LOW Exploitation Risk

98th percentile

This vulnerability has a 22.26% probability of being exploited in the next 30 days, ranking higher than 98% of all scored CVEs.

CWE Classification

NVD-CWE-Other

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