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.
History

Thu, 03 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apple:swiftnio_ssh:*:*:*:*:*:swift:*:*

Wed, 26 Aug 2026 17:45:00 +0000

Type Values Removed Values Added
Title Stack Out‑of‑Bounds Write via Crafted SSH Message in Swift‑NIO‑SSH

Wed, 26 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple swiftnio Ssh
Vendors & Products Apple
Apple swiftnio Ssh

Fri, 21 Aug 2026 01:30:00 +0000

Type Values Removed Values Added
Title Stack Out‑of‑Bounds Write via Crafted SSH Message in Swift‑NIO‑SSH
Weaknesses CWE-119
CWE-122

Thu, 20 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-08-20T21:07:01.719Z

Updated: 2026-08-26T14:05:32.813Z

Reserved: 2026-05-01T22:46:27.820Z

Link: CVE-2026-43798

cve-icon Vulnrichment

Updated: 2026-08-26T14:05:25.562Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-20T21:17:06.580

Modified: 2026-09-03T13:35:56.153

Link: CVE-2026-43798

cve-icon Redhat

No data.