CVE-2023-21467

Name: CVE-2023-21467
Creator: NVD / NIST
Published: 2025-09-03T06:15:39.013+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.28%

Last modified Jun 17, 2026

CVE-2023-21467 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Error in 3GPP specification implementation in Exynos baseband prior to SMR Apr-2023 Release 1 allows incorrect handling of unencrypted message.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.28%

19.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Samsung	Exynos	All versions

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=04Vendor Advisory

Timeline

Published: Sep 3, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-21467?

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

How severe is CVE-2023-21467?

CVE-2023-21467 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21467?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-21467?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST