CVE-2009-3838

Exp

Stack-based buffer overflow in Pegasus Mail (PMail) 4.41 and possibly 4.51 allows remote POP3 servers to cause a denial of service (application crash) or possibly execute arbitrary code via a long error message.

Published: 2009-11-02 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3838 is rated High Exploit Risk (83.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 20.90%, 96th percentile). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-3838

EDB-ID Source Kind Published Link
9957 exploit_db edb 2009-10-23 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-3838

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 2026-05-21 23.36% 20.90% -2.45%
2 2025-03-30 12.96% 23.36% +10.40%
3 2025-03-29 — 12.96% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3838

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-3838

Affected software / configurations for CVE-2009-3838

Vendor Product Version Raw CPE
pmail pegasus_mail 4.41 cpe:2.3:a:pmail:pegasus_mail:4.41:*:*:*:*:*:*:*
pmail pegasus_mail 4.51 cpe:2.3:a:pmail:pegasus_mail:4.51:*:*:*:*:*:*:*

References for CVE-2009-3838

cvelogic Threat Intelligence