Buffer Overflow Vulnerability in MailCarrier by Tabslab
CVE-2019-25364

9.3CRITICAL

Key Information:

Vendor

Tabs Laboratories Corporation

Status
Win10 Mailcarrier
Vendor
CVE Published:
18 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25364?

MailCarrier 2.51 is affected by a buffer overflow vulnerability in the POP3 USER command that can be exploited by remote attackers. By sending a specially crafted oversized buffer to the POP3 service, an attacker can overwrite memory and potentially execute arbitrary code. This vulnerability poses significant risks as it may lead to unauthorized access to the system, highlighting the need for prompt patching and careful configuration of applications relying on POP3 services. For detailed insights and protective measures, refer to the advisory on the Tabslab homepage.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Win10 MailCarrier 2.51

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-25364 - Proof of Concept

References

https://www.exploit-db.com/exploits/47554
exploit
https://www.tabslab.com/
product
https://www.vulncheck.com/advisories/win-mailcarrier-pop-...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lance Biggerstaff, Dino Covotsos - Telspace Systems
JSON
.