CVE-2023-26076

critical

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.

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/

http://packetstormsecurity.com/files/171400/Shannon-Baseband-NrSmPcoCodec-Intra-Object-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: 0.00695