CVE-2026-5393
OOB Read in DoTls13CertificateVerify with WOLFSSL_DUAL_ALG_CERTS
Severity Score
6.3
*CVSS v4
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
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.
*Credits:
Sunwoo Lee, (Korea Institute of Energy Technology, KENTECH) for testing, Woohyun Choi, (Korea Institute of Energy Technology, KENTECH) for testing, Seunghyun Yoon, (Korea Institute of Energy Technology, KENTECH) for testing
CVSS Scores
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
System
Vulnerable | Subsequent
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2026-04-01 CVE Reserved
- 2026-04-09 CVE Published
- 2026-04-13 CVE Updated
- 2026-05-11 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-125: Out-of-bounds Read