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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Tabs Laboratories Corporation Subscribe
Win10 Mailcarrier Subscribe

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Tabs Laboratories Corporation Subscribe
Win10 Mailcarrier Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.exploit-db.com/exploits/47554 cve-icon cve-icon
https://www.tabslab.com/ cve-icon cve-icon
https://www.vulncheck.com/advisories/win-mailcarrier-pop-user-remote-buffer-overflow cve-icon cve-icon
History

Thu, 19 Feb 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Tabs Laboratories Corporation
Tabs Laboratories Corporation win10 Mailcarrier
Vendors & Products Tabs Laboratories Corporation
Tabs Laboratories Corporation win10 Mailcarrier

Wed, 18 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
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.
Title Win10 MailCarrier 2.51 - 'POP3 User' Remote Buffer Overflow
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-02-18T21:55:10.094Z

Reserved: 2026-02-13T17:39:25.503Z

Link: CVE-2019-25364

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-18T22:16:22.260

Modified: 2026-02-18T22:16:22.260

Link: CVE-2019-25364

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-19T10:10:39Z

Weaknesses