P4Verified

CVE-2026-79659: Ech0 0 to before 4.7.3

CVE-2026-79659. CVSS 3.1 base score 7.7 (HIGH, Vendor/CNA). EPSS 0.00264 (percentile 0.16643), scored 2026-10-06.

Affected technology

Ech0 · 0 to before 4.7.3
lin-snow

Description’s affected range: before 4.7.3

Component: Not specified by the source
Function: that

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

Authenticated attackers can supply arbitrary URLs to access internal services and cloud metadata endpoints by triggering connection health checks or peer connection operations. Vendor/CNA’s CVSS 4.0 assessment (base score 8.3/10) rates confidentiality impact as high; integrity and availability impact as none.

Published 2026-10-08 17:34:51.834997+00:00

CWE: CWE-918
CCR priority: 30.9 /100 (P4)
CVSS 3.1: 7.7 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N · Vendor/CNA
EPSS: 0.00264 · percentile 0.16719 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-79659.html