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.
Published: 2026-10-08
Score: n/a
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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

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

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-95208

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T20:15:06Z

Weaknesses
  • CWE-20

    Improper Input Validation