CVE-2023-26076

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

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (5)

Products: Samsung: Exynos 1280 Firmware, Exynos 2200 Firmware, Exynos Modem 5123 Firmware, Exynos Modem 5300 Firmware, Exynos Auto T5123 Firmware

Samsung

5 products

Exynos 1280 Firmware

Exynos 2200 Firmware

Exynos Modem 5123 Firmware

Exynos Modem 5300 Firmware

Exynos Auto T5123 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Samsung Exynos 1280 Firmware	All versions

Running on/with	Platform Versions
Samsung Exynos 1280	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Samsung Exynos 2200 Firmware	All versions

Running on/with	Platform Versions
Samsung Exynos 2200	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Samsung Exynos Modem 5123 Firmware	All versions

Running on/with	Platform Versions
Samsung Exynos Modem 5123	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Samsung Exynos Modem 5300 Firmware	All versions

Running on/with	Platform Versions
Samsung Exynos Modem 5300	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Samsung Exynos Auto T5123 Firmware	All versions

Running on/with	Platform Versions
Samsung Exynos Auto T5123	All versions

Related CWEs

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (10)

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

Source: cve@mitre.org

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

Source: cve@mitre.org

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

Source: cve@mitre.org

Product

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

Source: cve@mitre.org

Product

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

Source: cve@mitre.org

Vendor Advisory

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