Stack-based Buffer Overflow in Axessh 4.2 by LabF
CVE-2019-25607

8.6HIGH

Key Information:

Vendor

Labf

Status
Axessh
Vendor
CVE Published:
22 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25607?

Axessh version 4.2 suffers from a stack-based buffer overflow vulnerability in the log file name field. Local attackers can exploit this vulnerability by providing an excessively long filename, which leads to buffer overflow at an offset of 214 bytes. This allows them to overwrite the instruction pointer and execute arbitrary code with system privileges, posing a significant risk to system security.

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Affected Version(s)

Axessh 4.2

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-2019-25607 - Proof of Concept

CVE-2019-25607 - Proof of Concept

CVE-2019-25607 - Proof of Concept

References

https://www.exploit-db.com/exploits/46922
exploit
http://www.labf.com
product
http://www.labf.com/download/axessh.exe
product

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
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

Uday Mittal (https://github.com/yaksas443/YaksasCSC-Lab/)
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