Stack-based buffer overflow in the trace message functionality in Pegasus Mail 4.21a through 4.21c and 4.30PB1 allow remote attackers to execute arbitrary code via a long POP3 reply.
Conclusion & alert: CVE-2005-4444 is rated Moderate Risk (53.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 6.29%). Core evidence: EPSS rose +1.61% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 4.68% | 6.29% | +1.61% |
| 2 | 2025-03-29 | 6.29% | 4.68% | -1.61% |
| 3 | 2025-03-19 | — | 6.29% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.1 | 2.0 | MEDIUM |
|
4.9 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| david_harris | pegasus_mail | 4.21a | cpe:2.3:a:david_harris:pegasus_mail:4.21a:*:*:*:*:*:*:* |
| david_harris | pegasus_mail | 4.21b | cpe:2.3:a:david_harris:pegasus_mail:4.21b:*:*:*:*:*:*:* |
| david_harris | pegasus_mail | 4.21c | cpe:2.3:a:david_harris:pegasus_mail:4.21c:*:*:*:*:*:*:* |
| david_harris | pegasus_mail | 4.30pb1 | cpe:2.3:a:david_harris:pegasus_mail:4.30pb1:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://secunia.com/advisories/17992 | Patch Vendor Advisory |
| http://secunia.com/secunia_research/2005-61/advisory/ | Vendor Advisory |
| http://securitytracker.com/id?1015385 | |
| http://www.osvdb.org/21842 | |
| http://www.pmail.com/newsflash.htm#secunia | Patch Vendor Advisory |
| http://www.securityfocus.com/archive/1/419908/100/0/threaded | |
| http://www.securityfocus.com/bid/15973 | |
| http://www.vupen.com/english/advisories/2005/3004 | Vendor Advisory |