DEBIAN-CVE-2026-125402

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Source

https://security-tracker.debian.org/tracker/CVE-2026-125402

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125402.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-125402

Upstream

CVE-2026-125402

Published

2026-11-10T00:17:14Z

Modified

2026-11-10T10:00:26Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator

Summary

[none]

Details

Ettercap through 0.8.4.1 contains a heap out-of-bounds read vulnerability in sslw_get_clienthello_sni() in src/ec_sslwrap.c that trusts the unchecked 16-bit SNI length field. Network-adjacent attackers can send crafted TLS ClientHello messages during SSL interception to leak up to 64 KB of heap memory upstream or crash Ettercap.

References

https://security-tracker.debian.org/tracker/CVE-2026-125402

Affected packages

Debian:12 / ettercap

Package

Name: ettercap
Purl: pkg:deb/debian/ettercap?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1:0.*

1:0.8.3.1-11

1:0.8.3.1-12

1:0.8.3.1-13

1:0.8.3.1-14

1:0.8.3.1-15

1:0.8.3.1-16

1:0.8.4-1

1:0.8.4-2

1:0.8.4-3

1:0.8.4-4

1:0.8.4-5

1:0.8.4.1-1

1:0.8.4.1-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125402.json"

Debian:13 / ettercap