CVE-2023-50806: exynos 850 Out-of-bounds Read — Fix

Description

A vulnerability was discovered in Samsung Mobile Processor, Wearable Processor, and Modems with versions Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850 Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380 Exynos 1330, Exynos 9110, Exynos W920, Exynos W930, Exynos Modem 5123, Exynos Modem 5300 that allows out-of-bounds access to a heap buffer in the SIM Proactive Command.

Is your site exposed to CVE-2023-50806?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.4

HIGH

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

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
samsung	exynos_modem_5123_firmware	All
samsung	exynos_modem_5123	All
samsung	exynos_modem_5300_firmware	All
samsung	exynos_modem_5300	All
samsung	exynos_9820_firmware	All
samsung	exynos_9820	All
samsung	exynos_9825_firmware	All
samsung	exynos_9825	All
samsung	exynos_980_firmware	All
samsung	exynos_980	All
samsung	exynos_990_firmware	All
samsung	exynos_990	All
samsung	exynos_850_firmware	All
samsung	exynos_850	All
samsung	exynos_1080_firmware	All
samsung	exynos_1080	All
samsung	exynos_2100_firmware	All
samsung	exynos_2100	All
samsung	exynos_1280_firmware	All
samsung	exynos_1280	All
samsung	exynos_2200_firmware	All
samsung	exynos_2200	All
samsung	exynos_1330_firmware	All
samsung	exynos_1330	All
samsung	exynos_1380_firmware	All
samsung	exynos_1380	All
samsung	exynos_9110_firmware	All
samsung	exynos_9110	All
samsung	exynos_w920_firmware	All
samsung	exynos_w920	All
samsung	exynos_w930_firmware	All
samsung	exynos_w930	All

References

Advisories & Patches

https://semiconductor.samsung.com/support/quality-support/product-security-updates/ https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2023-50806/ https://semiconductor.samsung.com/support/quality-support/product-security-updates/ https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2023-50806/

Frequently Asked Questions

What is CVE-2023-50806? +

A vulnerability was discovered in Samsung Mobile Processor, Wearable Processor, and Modems with versions Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850 Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380 Exynos 1330, Exynos 9110, Exynos W920, Exynos W930, Exynos Modem 5123, Exynos Modem 5300 that allows out-of-bounds access to a heap buffer in the SIM Proactive Command. It has a CVSS v3.1 base score of 8.4 (HIGH).

How severe is CVE-2023-50806? +

CVE-2023-50806 has a CVSS v3.1 score of 8.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-50806? +

CVE-2023-50806 affects products from samsung, specifically: exynos_1080, exynos_1080_firmware, exynos_1280, exynos_1280_firmware, exynos_1330, exynos_1330_firmware, exynos_1380, exynos_1380_firmware, exynos_2100, exynos_2100_firmware, exynos_2200, exynos_2200_firmware, exynos_850, exynos_850_firmware, exynos_9110, exynos_9110_firmware, exynos_980, exynos_980_firmware, exynos_9820, exynos_9820_firmware, exynos_9825, exynos_9825_firmware, exynos_990, exynos_990_firmware, exynos_modem_5123, exynos_modem_5123_firmware, exynos_modem_5300, exynos_modem_5300_firmware, exynos_w920, exynos_w920_firmware, exynos_w930, exynos_w930_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-50806? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-29013

libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix B.2 CBOR unwrap handling where get_byte_inc() in src/oscore/oscore_cbor.c relies solely on assert() …

CVE-2026-53566

Out-of-bounds read vulnerability in Citrix Citrix Secure Access Client for Windows. This issue affects Citrix Secure Access Client for Windows: …

CVE-2026-3508

An Out-of-bounds Read vulnerability in the IOCTL handler in ASUS System Control Interface allows a local user to cause system …

CVE-2025-48520

An improper input validation vulnerability within the AMD Platform Management Framework (PMF) driver can allow a local attacker to read …

CVE-2026-3894

Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.This issue affects Connext Professional: from 7.4.0 before 7.7.0, …

CVE-2025-4098

Horner Automation Cscape version 10.0 (10.0.415.2) SP1 is vulnerable to an out-of-bounds read vulnerability that could allow an attacker to …

CVE-2023-50806