Buffer overflow in Tabslab Mailcarrier
CVE-2019-25364
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (57.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.000
Affected products
- Tabslab Mailcarrier — versions 2.51
- Tabs Laboratories Corporation Win10 Mailcarrier — versions 2.51
Weakness classification (CWE)
References
- ExploitDB-47554 (Exploit, exploit, Third Party Advisory)
- Vendor Homepage (Product, product)
- VulnCheck Advisory: Win10 MailCarrier 2.51 - 'POP3 User' Remote Buffer Overflow (Broken Link, third-party-advisory)
Frequently asked questions
- What is CVE-2019-25364?
- CVE-2019-25364 is a critical-severity vulnerability in Tabslab Mailcarrier, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-02-18.
- How severe is CVE-2019-25364?
- Critical severity. CVSS v3 base score is 9.8 out of 10.