CVE-2002-1698

Msn Messenger vulnerability

CVSS

5.0

EPSS

15.5%

EPSS pct

96th

Exploited

No known

Buffer overflow in Microsoft MSN Messenger Service 1.0 through 4.6 allows remote attackers to cause a denial of service (crash) via a long FN (font) argument in the message header.

Affected vendor

Microsoft

Affected product

Msn Messenger

CVSS vector

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

Published

2002-12-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 15.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2002-1698

Confirm whether Microsoft Msn Messenger is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2002-1698.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2002-1698

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2002-1698 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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