CVE-2023-26074

critical

Description

An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 850, Exynos 980, Exynos 1080, Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123.. A heap-based buffer overflow in the 5G MM message codec can occur due to insufficient parameter validation when decoding operator-defined access category definitions.

References

https://googleprojectzero.blogspot.com/2023/03/multiple-internet-to-baseband-remote-rce.html

https://semiconductor.samsung.com/support/quality-support/product-security-updates/

https://semiconductor.samsung.com/processor/modem/

https://semiconductor.samsung.com/processor/mobile-processor/

https://project-zero.issues.chromium.org/issues/42451536

https://bugs.chromium.org/p/project-zero/issues/detail?id=2397

http://packetstormsecurity.com/files/171383/Shannon-Baseband-NrmmMsgCodec-Access-Category-Definitions-Heap-Buffer-Overflow.html

Details

Source: Mitre, NVD

Published: 2023-03-13

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00929