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CVE-2004-0666

19
FAUCET Score

CVE-2004-0666 describes an off-by-one error in the POP3_readmsg function of popclient 3.0b6, allowing remote attackers to trigger a denial of service via a crafted email message that causes a buffer overflow. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network without authentication, potentially leading to partial confidentiality, integrity, and availability impacts. Despite its severity, there is no evidence of active exploitation, no public exploit code available (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.0_b6CPE matchmatch criteria
cpe:2.3:a:popclient:popclient:3.0_b6:*:*:*:*:*:*:*

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
1.74%
Probability of exploitation in next 30 days
EPSS Percentile
75.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0174 is in the 58th percentile among its peer group of 51,466 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

lists.grok.org.uk / pipermail/full-disclosure/2004-June/023147.html
marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/16538
grok.org.uk / advisories/popclient.html
securityfocus.com / bid/10625
Vendor Advisory