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CVE-2026-5393

OOB Read in DoTls13CertificateVerify with WOLFSSL_DUAL_ALG_CERTS

Published: Apr 9, 2026Updated: Apr 29, 2026 Sources: CVE List NVDCWE-125
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.2%
Top 90.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Dual-Algorithm CertificateVerify out-of-bounds read. When processing a dual-algorithm CertificateVerify message, an out-of-bounds read can occur on crafted input. This can only occur when --enable-experimental and --enable-dual-alg-certs is used when building wolfSSL.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-125

Affected Products

wolfsslwolfssl
LibraryLibrary
OSS Libraries / generic-library
wolfSSLwolfSSL
LibraryLibrary
OSS Libraries / generic-library
wolfssloss-projectOSS Librariesaka wolfmqtt, wolfssh, wolfssl

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/wolfSSL/wolfssl/pull/10079
github.com

Timeline

Published
Apr 9, 2026
Last Updated
Apr 29, 2026

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