Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion. A heap buffer overflow occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 10 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-131
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

threat_severity

Moderate


Thu, 09 Apr 2026 21:00:00 +0000

Type Values Removed Values Added
Description Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion. A heap buffer overflow occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension.
Title Heap buffer overflow in CertFromX509() via AuthorityKeyIdentifier
Weaknesses CWE-122
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wolfSSL

Published:

Updated: 2026-04-09T20:13:34.398Z

Reserved: 2026-04-02T19:39:14.309Z

Link: CVE-2026-5447

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-09T21:16:13.150

Modified: 2026-04-09T21:16:13.150

Link: CVE-2026-5447

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-09T20:13:34Z

Links: CVE-2026-5447 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses