Stack-Based Buffer Overflow in ActFax Server by ActFax
CVE-2013-10064

9.3CRITICAL

Key Information:

Vendor

Actfax Communication

Status
Actfax Server
Vendor
CVE Published:
5 August 2025

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 63%

What is CVE-2013-10064?

A stack-based buffer overflow vulnerability is present in ActFax Server version 5.01. The vulnerability arises from the RAW protocol interface's inability to safely handle user-supplied data found in @F506 fax header fields, attributed to the insecure use of the strcpy function. Remote attackers may exploit this flaw by crafting malicious @F506 fields, which could potentially lead to arbitrary code execution on the affected server. Exploitation requires network access to TCP port 4559 and does not necessitate user authentication.

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Affected Version(s)

ActFax Server 5.01

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-2013-10064 - Proof of Concept

CVE-2013-10064 - Proof of Concept

CVE-2013-10064 - Proof of Concept

References

http://www.actfax.com/
product
https://web.archive.org/web/20130212065755/http://www.pwn...
technical-descriptionexploit
https://raw.githubusercontent.com/rapid7/metasploit-frame...
exploit

EPSS Score

63% chance of being exploited in the next 30 days.

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

Craig Freyman
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