VULNERABILITY INTELLIGENCE

CVE-2026-43798

CVSS score9.8 CRITICAL
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-08-20
Last modified2026-10-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

A single crafted SSH message gives an unauthenticated network attacker an out-of-bounds stack write of attacker-controlled length and content against any application built on swift-nio-ssh. This vulnerability is addressed in swift-nio-ssh version 0.14.1.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-121

Primary references