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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

cpe:2.3:a:tabslab:mailcarrier:2.51:*:*:*:*:*:*:*

History

24 Feb 2026, 20:41

Type	Values Removed	Values Added
First Time		Tabslab Tabslab mailcarrier
CPE		cpe:2.3:a:tabslab:mailcarrier:2.51:::::::*
Summary		(es) MailCarrier 2.51 contiene una vulnerabilidad de desbordamiento de búfer en el comando POP3 USER que permite a atacantes remotos ejecutar código arbitrario. Los atacantes pueden enviar un búfer sobredimensionado y manipulado al servicio POP3, sobrescribiendo la memoria y potencialmente obteniendo acceso remoto al sistema.
References	~~() https://www.exploit-db.com/exploits/47554 -~~	() https://www.exploit-db.com/exploits/47554 - Exploit, Third Party Advisory
References	~~() https://www.tabslab.com/ -~~	() https://www.tabslab.com/ - Product
References	~~() https://www.vulncheck.com/advisories/win-mailcarrier-pop-user-remote-buffer-overflow -~~	() https://www.vulncheck.com/advisories/win-mailcarrier-pop-user-remote-buffer-overflow - Broken Link

18 Feb 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-18 22:16

Updated : 2026-02-24 20:41

NVD link : CVE-2019-25364

Mitre link : CVE-2019-25364

CVE.ORG link : CVE-2019-25364

JSON object : View

Products Affected

tabslab

mailcarrier

CWE

CWE-121

Stack-based Buffer Overflow

{"id": "CVE-2019-25364", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "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:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-18T22:16:22.260", "references": [{"url": "https://www.exploit-db.com/exploits/47554", "tags": ["Exploit", "Third Party Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.tabslab.com/", "tags": ["Product"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/win-mailcarrier-pop-user-remote-buffer-overflow", "tags": ["Broken Link"], "source": "disclosure@vulncheck.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "MailCarrier 2.51 contiene una vulnerabilidad de desbordamiento de b\u00fafer en el comando POP3 USER que permite a atacantes remotos ejecutar c\u00f3digo arbitrario. Los atacantes pueden enviar un b\u00fafer sobredimensionado y manipulado al servicio POP3, sobrescribiendo la memoria y potencialmente obteniendo acceso remoto al sistema."}], "lastModified": "2026-02-24T20:41:08.130", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:tabslab:mailcarrier:2.51:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3CC3C96F-8B9B-41D9-A99B-CE9BA1E24F47"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}