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CVE-2026-9365— Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow

Quick assessment

Affected
n/a Ettercap
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ettercap是Ettercap开源的一个针对中间人攻击的综合套件。它具有嗅探实时连接、动态内容过滤的功能。 Ettercap 0.8.3及之前版本存在安全漏洞，该漏洞源于组件GG Dissector中文件src/dissectors/ec_gg.c的函数FUNC_DECODER对参数gg操作不当，可能导致堆缓冲区溢出。

CVSS 5.6 · Medium EPSS 0.32% · P24

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
n/a Ettercap 0.8.0 affected
0.8.1 affected
0.8.2 affected
0.8.3 affected
0.8.4 unaffected
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I. Basic Information for CVE-2026-9365

Vulnerability Information
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Vulnerability Title
Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Ettercap up to 0.8.3. The affected element is the function FUNC_DECODER of the file src/dissectors/ec_gg.c of the component GG Dissector. The manipulation of the argument gg leads to heap-based buffer overflow. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 0.8.4 is sufficient to fix this issue. The identifier of the patch is feeae6fa366e01a3dd9f1857ec6aae847b2ae00c. It is suggested to upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Ettercap 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ettercap是Ettercap开源的一个针对中间人攻击的综合套件。它具有嗅探实时连接、动态内容过滤的功能。 Ettercap 0.8.3及之前版本存在安全漏洞，该漏洞源于组件GG Dissector中文件src/dissectors/ec_gg.c的函数FUNC_DECODER对参数gg操作不当，可能导致堆缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Ettercap 0.8.0 cpe:2.3:a:ettercap:ettercap:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9365

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III. Intelligence Information for CVE-2026-9365

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Patches & Fixes for CVE-2026-9365 (2)

Proof of Concept for CVE-2026-9365 (1)

Vendor Pages for CVE-2026-9365 (1)

Same Patch Batch · n/a · 2026-05-24 · 5 CVEs total

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CVE-2026-9357 3.5 LOW vBulletin Login cross site scripting

IV. Related Vulnerabilities

Same product: Ettercap
Same vendor: n/a
Same weakness: CWE-122

V. Comments for CVE-2026-9365

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