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CVE-2004-1558

77
FAUCET Score

CVE-2004-1558 describes multiple stack-based buffer overflows in YPOPs! versions 0.4 through 0.6. This vulnerability allows remote attackers to trigger a denial of service (crash) and potentially execute arbitrary code by sending overly long POP3 USER commands or SMTP requests. With a CVSS score of 7.5 and an EPSS score indicating high exploitability, this flaw presents a significant risk. Exploit code, including a Metasploit module, is publicly available, though there is no evidence of active exploitation or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.4CPE matchmatch criteria
cpe:2.3:a:ypops:ypops:0.4:*:*:*:*:*:*:*
0.4.1CPE matchmatch criteria
cpe:2.3:a:ypops:ypops:0.4.1:*:*:*:*:*:*:*
0.4.2CPE matchmatch criteria
cpe:2.3:a:ypops:ypops:0.4.2:*:*:*:*:*:*:*
0.4.3CPE matchmatch criteria
cpe:2.3:a:ypops:ypops:0.4.3:*:*:*:*:*:*:*
0.4.4CPE matchmatch criteria
cpe:2.3:a:ypops:ypops:0.4.4:*:*:*:*:*:*:*

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
71.11%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: YPOPS 0.6 Buffer Overflow · Sep 27, 2004
ExploitDB: EDB-16818 · May 9, 2010
This CVE's current EPSS score of 0.7111 is in the 99th percentile among its peer group of 51,466 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

dbeusee.home.comcast.net / history.html
marc.info
secunia.com / advisories/12660
securitytracker.com / alerts/2004/Sep/1011426.html
exchange.xforce.ibmcloud.com / vulnerabilities/17515
exchange.xforce.ibmcloud.com / vulnerabilities/17518
attrition.org / pipermail/vim/2006-October/001089.html
hat-squad.com / en/000075.html
ExploitVendor Advisory
osvdb.org / 10366
osvdb.org / 10367
securityfocus.com / bid/11256
ExploitPatch