CVE-2009-3838

CVE-2009-3838 is a critical-severity vulnerability in Pmail Pegasus Mail with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Description

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.

Frequently asked questions

What is CVE-2009-3838?
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.
How severe is CVE-2009-3838?
CVE-2009-3838 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-3838 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3838?
CVE-2009-3838 primarily affects Pmail Pegasus Mail. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3838?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-3838 published?
CVE-2009-3838 was published on 2009-11-02 and last updated on 2026-06-16.

References

Affected products (2)

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

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