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CVE-2002-1664

20
FAUCET Score

CVE-2002-1664 describes a vulnerability in Yahoo! Messenger versions released before February 2002, allowing remote attackers to arbitrarily add users to another user's buddy list. This flaw carries a CVSS score of 6.4, indicating a medium severity, with a network attack vector, low complexity, and potential for partial confidentiality and integrity impact. Despite its age, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
5.0CPE matchmatch criteria
cpe:2.3:a:yahoo:messenger:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.16%
Probability of exploitation in next 30 days
EPSS Percentile
86.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0316 is in the 81st percentile among its peer group of 23,684 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
cert.org / advisories/CA-2002-16.html
PatchThird Party AdvisoryUS Government Resource
kb.cert.org / vuls/id/393195
Third Party AdvisoryUS Government Resource