CVE-2026-3606: A vulnerability has been found in Ettercap 0.8.4-Garofalo

Routine

LOW 3.3DOWNGRADE

CVE-2026-3606 is a low-severity flaw (CVSS 3.3) affecting ettercap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been found in Ettercap 0.8.4-Garofalo. Affected by this vulnerability is the function add_data_segment of the file src/ettercap/utils/etterfilter/ef_output.c of the component etterfilter. The manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not re

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.3 (Low)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-119, CWE-125, CWE-787
Published	2026-03-05
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: ettercap-project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-05 22:16 UTCPublished CVE record published
2026-06-17 10:43 UTCUpdated Record last modified

ettercap-project ettercap DOWNGRADE

Affected: 0.8.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.8.4

1. Check installed version

apt-cache policy ettercap || rpm -q ettercap || ettercap --version

2. No fixed release: DOWNGRADE to a release before 0.8.4 (Debian / Ubuntu)

apt-cache madison ettercap sudo apt install ettercap=<VERSION_BEFORE_0.8.4> sudo apt-mark hold ettercap

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ettercap sudo dnf downgrade ettercap-<VERSION_BEFORE_0.8.4> sudo dnf versionlock add ettercap

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-3606?

ettercap: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-3606 being exploited?

CVE-2026-3606 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-3606 affect?

CVE-2026-3606 affects ettercap. Severity is low (CVSS 3.3). A vulnerability has been found in Ettercap 0.8.4-Garofalo. Affected by this vulnerability is the function add_data_segment of the file src/ettercap/utils/etterfilter/ef_output.c of the component etterfilter. The manipulation leads to out-of

How urgent is CVE-2026-3606?

Priority 18/100. Public exploit reference

References

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