PT-2026-31826 · Wolfssl · Wolfssl

Stefan0X03 · Published 2026-04-09 · Updated 2026-04-30 · CVE-2026-5393

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions wolfSSL (affected versions not specified)

Description An out-of-bounds read can occur when processing a dual-algorithm CertificateVerify message on crafted input. This issue only occurs when wolfSSL is built with the --enable-experimental and --enable-dual-alg-certs flags.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-5393

Affected Products

Wolfssl

References · 11

• https://github.com/wolfSSL/wolfssl/pull/10079 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-5393 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-5393 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-5393 · Security Note
• https://ubuntu.com/security/CVE-2026-5393 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-5393 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-5393 · Security Note
• https://twitter.com/CVEarity/status/2042638356178420198 · Twitter Post
• https://twitter.com/CVEnew/status/2042387935769821241 · Twitter Post
• https://t.me/msrcreports/4084 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2044082858969399611 · Twitter Post