Which versions of Wolfssl are affected by EUVD-2026-13209?

CVE-2026-3230 is a low-severity vulnerability involving input validation (CVSS 1.2).. A patch is available.

How to fix or mitigate EUVD-2026-13209?

During next maintenance window: Apply vendor patches when convenient. Verify input validation controls are in place.

Wolfssl EUVD-2026-13209

Q: What is the CVSS score of EUVD-2026-13209?

EUVD-2026-13209 has a CVSS 4.0 base score of 1.2 (Low). CVSS vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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:Y/R:A/V:D/RE:X/U:Clear. EPSS exploitation probability: 0.1%.

| CVE-2026-3230 LOW

Improper Input Validation (CWE-20)

2026-03-19 facts@wolfssl.com

Information Disclosure Wolfssl

1.2

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

1.2 LOW

CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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:Y/R:A/V:D/RE:X/U:Clear

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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:Y/R:A/V:D/RE:X/U:Clear

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

Patch available

Apr 16, 2026 - 05:29 EUVD

5.9.0

EUVD ID Assigned

Mar 19, 2026 - 21:30 euvd

EUVD-2026-13209

Analysis Generated

Mar 19, 2026 - 21:30 vuln.today

CVE Published

Mar 19, 2026 - 21:17 nvd

LOW 1.2

DescriptionCVE.org

Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required key_share extension, resulting in derivation of predictable traffic secrets from (EC)DHE shared secret. This issue does not affect the client's authentication of the server during TLS handshakes.

AnalysisAI

CVE-2026-3230 is a security vulnerability (CVSS 1.2). Remediation should follow standard vulnerability management procedures.

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Vulnerability AssessmentAI

Risk Assessment	CVSS 1.2. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker could exploit this vulnerability in the affected application to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.
Remediation	Monitor vendor channels for patch availability. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

During next maintenance window: Apply vendor patches when convenient. …

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EUVD-2026-13209 vulnerability details – vuln.today

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