CVE-2004-1558

CVE-2004-1558 is a high-severity vulnerability in Ypops with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 71% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Multiple stack-based buffer overflows in YPOPs! (aka YahooPOPS) 0.4 through 0.6 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) POP3 USER command or (2) SMTP request.

Frequently asked questions

What is CVE-2004-1558?
Multiple stack-based buffer overflows in YPOPs! (aka YahooPOPS) 0.4 through 0.6 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) POP3 USER command or (2) SMTP request.
How severe is CVE-2004-1558?
CVE-2004-1558 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2004-1558 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 71% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1558?
CVE-2004-1558 primarily affects Ypops. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1558?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2004-1558 published?
CVE-2004-1558 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (9)