Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-43798 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/apple/swift-nio-ssh/security/advisories/GHSA-998x-vgvp-xwpc [email protected]Vendor AdvisoryPatch

Weakness Enumeration

CWE-IDCWE NameSource
CWE-121Stack-based Buffer OverflowCISA-ADP

Affected Products

ProductVersions
apple swiftnio ssh
< 0.14.1

CPE

  • cpe:2.3:a:apple:swiftnio_ssh:*:*:*:*:*:swift:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-43798
NVD Published Date:
Aug 20, 2026
NVD Last Modified:
Sep 3, 2026
Source:
[email protected]
CVE-2026-43798 Details - Not Deferred