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Vulnerability record · CVE-2019-25364 · published 18 February 2026

CVE-2019-25364: Tabslab mailcarrier stack-based buffer overflow vulnerability

TTabslab · Mailcarrier

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.

9.3 CVSS 4.0 Critical EPSS 0.87% · top 42.9% CWE-121 · Stack-based buffer overflow
9.3CVSS 4.0 base score
0.87%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.exploit-db.com/exploits/47554 ExploitThird Party Advisory
https://www.tabslab.com/ Product
https://www.vulncheck.com/advisories/win-mailcarrier-pop-user-remote-buffer-overflow Broken Link

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-25364), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.