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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.

PUBLISHED Reserved 2026-05-23 | Published 2026-05-24 | Updated 2026-05-24 | Assigner VulDB




MEDIUM: 6.3CVSS: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
MEDIUM: 5.6CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
MEDIUM: 5.6CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
5.1AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

Heap-based Buffer Overflow

Memory Corruption

Timeline

2026-05-23:Advisory disclosed
2026-05-23:VulDB entry created
2026-05-23:VulDB entry last update

Credits

dapickle (VulDB User) reporter

References

vuldb.com/vuln/365328 (VDB-365328 | Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow) vdb-entry technical-description

vuldb.com/vuln/365328/cti (VDB-365328 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/813142 (Submit #813142 | Ettercap <=v0.8.4 Heap-based Buffer Overflow) third-party-advisory

github.com/Ettercap/ettercap/issues/1306 exploit issue-tracking

github.com/Ettercap/ettercap/pull/1307 issue-tracking patch

github.com/...ommit/feeae6fa366e01a3dd9f1857ec6aae847b2ae00c patch

github.com/Ettercap/ettercap/ product

cve.org (CVE-2026-9365)

nvd.nist.gov (CVE-2026-9365)

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