CVE-2023-26076

Name: CVE-2023-26076
Creator: NVD / NIST
Published: 2023-03-13T15:15:12.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2023-26076 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.

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

0.93%

55.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Samsung	Exynos 1280 Firmware	All versions
Samsung	Exynos 2200 Firmware	All versions
Samsung	Exynos Modem 5123 Firmware	All versions
Samsung	Exynos Modem 5300 Firmware	All versions
Samsung	Exynos Auto T5123 Firmware	All versions

References

Timeline

Published: Mar 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-26076?

How severe is CVE-2023-26076?

CVE-2023-26076 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2023-26076?

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-2023-26076?

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

Scan your code now

Source: NVD / NIST