CVE-2026-9365

Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow

State: Published
Severity: 6.3 Medium
Published: May 24, 2026
Updated: May 26, 2026
Reserved: May 23, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	5.6 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	5.6 Medium	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	5.1 Medium	AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-122 Heap-based Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
Ettercapn/a	0.8.0Affected 0.8.1Affected 0.8.2Affected 0.8.3Affected 0.8.4Not affected

References

VDB-365328 | Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflowvdb-entrytechnical-description
VDB-365328 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #813142 | Ettercap <=v0.8.4 Heap-based Buffer Overflowthird-party-advisory
https://github.com/Ettercap/ettercap/issues/1306exploitissue-tracking
https://github.com/Ettercap/ettercap/pull/1307issue-trackingpatch
https://github.com/Ettercap/ettercap/commit/feeae6fa366e01a3dd9f1857ec6aae847b2ae00cpatch
https://github.com/Ettercap/ettercap/product

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