What is the CVSS score of CVE-2023-21467?

CVE-2023-21467 has a CVSS 3.1 base score of 4.6 (Medium). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.1%.

Which versions of Exynos are affected by CVE-2023-21467?

Organizations using 3GPP specification implementation in Exynos baseband should be aware of moderate risk from CVE-2023-21467, a improper authentication vulnerability rated CVSS 4.6.

How to fix or mitigate CVE-2023-21467?

During next maintenance window: Identify affected systems running 3GPP specification implementation in Exynos baseband and apply vendor patches when convenient. Audit authentication configurations.

Exynos CVE-2023-21467

MEDIUM

Improper Authentication (CWE-287)

2025-09-03 mobile.security@samsung.com

Authentication Bypass Samsung Exynos

4.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.6 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:10 vuln.today

CVE Published

Sep 03, 2025 - 06:15 nvd

MEDIUM 4.6

DescriptionCVE.org

Error in 3GPP specification implementation in Exynos baseband prior to SMR Apr-2023 Release 1 allows incorrect handling of unencrypted message.

AnalysisAI

Error in 3GPP specification implementation in Exynos baseband prior to SMR Apr-2023 Release 1 allows incorrect handling of unencrypted message. Rated medium severity (CVSS 4.6). No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. Error in 3GPP specification implementation in Exynos baseband prior to SMR Apr-2023 Release 1 allows incorrect handling of unencrypted message. Affected products include: Samsung Exynos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.