P4Verified

CVE-2026-15340: lwIP SMTP client 2.2.1

CVE-2026-15340. CVSS 3.1 base score 9.8 (CRITICAL, Vendor/CNA).

Affected technology

lwIP SMTP client · 2.2.1
Savannah

Component: Not specified by the source

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

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 9.3/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-09 21:09:35.465259+00:00

CWE: CWE-120
CCR priority: 39.2 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-09 21:08:49.498434+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-15340.html