CVE-2019-25364
Received Received - Intake

Buffer Overflow in MailCarrier POP3 USER Allows Remote Code Execution

Publication date: 2026-02-18

Last updated on: 2026-02-24

Assigner: VulnCheck

Description
MailCarrier 2.51 contains a buffer overflow vulnerability in the POP3 USER command that allows remote attackers to execute arbitrary code. Attackers can send a crafted oversized buffer to the POP3 service, overwriting memory and potentially gaining remote system access.

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Meta Information

Published
2026-02-18
Last Modified
2026-02-24
Generated
2026-07-06
AI Q&A
2026-02-19
EPSS Evaluated
2026-07-05
NVD
CVE-2019-25364
EUVD
EUVD-2019-19700

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tabslab mailcarrier 2.51

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

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Executive Summary

MailCarrier version 2.51 has a buffer overflow vulnerability in the POP3 USER command. This means that an attacker can send an excessively large input to the POP3 service, which causes memory to be overwritten improperly.

By exploiting this flaw, remote attackers can execute arbitrary code on the affected system, potentially taking control of it.

Impact Analysis

This vulnerability can have severe impacts as it allows remote attackers to execute arbitrary code without any authentication or user interaction.

Successful exploitation could lead to complete system compromise, unauthorized access to sensitive data, disruption of services, and potential use of the system as a foothold for further attacks.

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