CVE-2026-5447

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/wolfSSL/wolfssl/pull/10112	Issue Tracking Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

History

29 Apr 2026, 17:21

Type	Values Removed	Values Added
References	~~() https://github.com/wolfSSL/wolfssl/pull/10112 -~~	() https://github.com/wolfSSL/wolfssl/pull/10112 - Issue Tracking, Patch
First Time		Wolfssl Wolfssl wolfssl
CPE		cpe:2.3:a:wolfssl:wolfssl::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

09 Apr 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-09 21:16

Updated : 2026-04-29 17:21

NVD link : CVE-2026-5447

Mitre link : CVE-2026-5447

CVE.ORG link : CVE-2026-5447

JSON object : View

Products Affected

wolfssl

wolfssl

CWE

CWE-122

Heap-based Buffer Overflow

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