Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Ettercap | 0.8.0; 0.8.1; 0.8.2; 0.8.3 | 0.8.4 | Patch available | CNA |
- Ettercap Vendor— Affected 0.8.0; 0.8.1; 0.8.2; 0.8.3 Fixed in 0.8.4 Patch available CNA
Remediation
- Fix · CNA Ettercap Fixed in 0.8.4
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9365
- 2026-10-03 Alias added: GHSA-fgvc-qw77-cmcj
References
Sources
- CVE-2026-9365 · CVE Program
- CVE-2026-9365 · NVD
- FIRST EPSS
- GHSA-fgvc-qw77-cmcj · GitHub Advisory Database · CC BY 4.0
- CVE-2026-9365 · Red Hat security data · CC BY 4.0
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