An issue in the ConfirmNameConstraints() function (wolfcrypt/src/asn.c) of wolfSSL v5.9.1 and v5.9.2 allows attackers to cause a Denial of Service (DoS) via providing crafted Certificate Authority certificates, leading to valid certificates without SAN to be incorrectly rejected by wolfSSL-based TLS clients.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 09 Oct 2026 04:00:00 +0000

Type Values Removed Values Added
Title wolfSSL Certificate Validation Failure Causes DoS

Fri, 09 Oct 2026 02:15:00 +0000

Type Values Removed Values Added
Title wolfSSL Certificate Validation Failure Causes DoS

Fri, 09 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
Title DoS via Misvalidated Certificate Name Constraints in wolfSSL
Weaknesses CWE-20

Thu, 08 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-295
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

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


Thu, 08 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Wolfssl
Wolfssl wolfssl
Vendors & Products Wolfssl
Wolfssl wolfssl

Thu, 08 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Title DoS via Misvalidated Certificate Name Constraints in wolfSSL
Weaknesses CWE-20

Thu, 08 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
Description An issue in the ConfirmNameConstraints() function (wolfcrypt/src/asn.c) of wolfSSL v5.9.1 and v5.9.2 allows attackers to cause a Denial of Service (DoS) via providing crafted Certificate Authority certificates, leading to valid certificates without SAN to be incorrectly rejected by wolfSSL-based TLS clients.
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-08T20:16:24.707Z

Reserved: 2026-09-22T00:00:00.000Z

Link: CVE-2026-95208

cve-icon Vulnrichment

Updated: 2026-10-08T20:16:20.987Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-08T16:18:01.420

Modified: 2026-10-08T21:34:48.800

Link: CVE-2026-95208

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T03:45:16Z

Weaknesses