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JLSEC-2026-721 Medium 6.3

Dual-Algorithm CertificateVerify out-of-bounds read

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JLSEC Published
Modified
Severity
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Affected Packages
wolfSSL_jll < 5.9.2+0
Upstream
CVE-2026-5393 GHSA-f4w6-5m9p-28hw EUVD-2026-21231

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.

References