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CVE-2002-0322

24
FAUCET Score

CVE-2002-0322 describes a critical vulnerability in Yahoo! Messenger 4.0 where user passwords are transmitted in cleartext. This allows remote attackers to intercept credentials via network sniffing, potentially leading to unauthorized access and privilege escalation. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network with low complexity, posing a significant risk of confidentiality, integrity, and availability compromise. While there is no known active exploitation or publicly available exploit code in Metasploit or ExploitDB, the vulnerability has garnered notable community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:yahoo:messenger:4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 55th percentile among its peer group of 51,485 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
marc.info
securityfocus.com / bid/4173