Heap-Based Buffer Overflow in Ettercap GG Dissector by Ettercap
CVE-2026-9365

6.3MEDIUM

Key Information:

Vendor

Ettercap

Status
Ettercap
Vendor
CVE Published:
24 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9365?

A significant vulnerability has been identified in Ettercap, specifically within the GG Dissector component. This issue revolves around a heap-based buffer overflow in the FUNC_DECODER function located in src/dissectors/ec_gg.c. By manipulating the 'gg' argument, an attacker can exploit this vulnerability remotely. Although the complexity and exploitability of this attack are noted to be high, there exists public knowledge of the exploit, which stresses the importance of upgrading to version 0.8.4 to mitigate the risk. Users are strongly advised to take action by applying the recommended patches to secure their systems.

Affected Version(s)

Ettercap 0.8.0

Ettercap 0.8.1

Ettercap 0.8.2

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-2026-9365 - Proof of Concept

References

https://vuldb.com/vuln/365328
vdb-entrytechnical-description
https://vuldb.com/vuln/365328/cti
signaturepermissions-required
https://vuldb.com/submit/813142
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

dapickle (VulDB User)
.