CVE-2024-27362: Samsung Exynos Information Disclosure

CVE-2024-27362 Overview

CVE-2024-27362 is an information disclosure vulnerability affecting multiple Samsung Exynos mobile processors. The flaw stems from improper validation of data length within affected baseband firmware. A remote attacker can exploit this weakness over the network without authentication or user interaction to read sensitive data from the affected processor. The vulnerability is classified under [CWE-1284] Improper Validation of Specified Quantity in Input and [CWE-200] Exposure of Sensitive Information to an Unauthorized Actor. Samsung Semiconductor issued an advisory addressing the issue in its Product Security Updates portal.

Critical Impact
A network-based attacker can disclose confidential data from Samsung Exynos processors without requiring privileges or user interaction.

Affected Products

Samsung Exynos 1280 and Exynos 2200 (processor and firmware)
Samsung Exynos 1330 and Exynos 1380 (processor and firmware)
Samsung Exynos 2400 (processor and firmware)

Discovery Timeline

2024-07-09 - CVE-2024-27362 published to NVD
2025-03-20 - Last updated in NVD database

Technical Details for CVE-2024-27362

Vulnerability Analysis

The vulnerability exists within the data parsing logic of affected Samsung Exynos mobile processors. The firmware does not properly verify the length of incoming data before processing it. This missing bounds check allows an attacker to coerce the processor into returning information beyond the intended data boundary. The consequence is unauthorized disclosure of memory contents that may include sensitive subscriber, session, or device data.

Samsung Exynos processors integrate the cellular baseband responsible for handling mobile network protocol traffic. Because the attack surface is reachable over the network, an attacker positioned to deliver crafted protocol messages can trigger the flaw remotely. The vulnerability impacts confidentiality only and does not affect integrity or availability of the device.

Root Cause

The root cause is improper validation of a specified quantity in input [CWE-1284]. The affected firmware components accept structured input but fail to confirm that the declared or actual length value falls within safe limits. When the processor copies or reads data based on an attacker-influenced length, it exposes adjacent memory contents [CWE-200].

Attack Vector

Exploitation occurs across a network attack vector with low complexity and no authentication. An adversary capable of transmitting malformed protocol data to an affected Exynos baseband can trigger the disclosure. No user interaction is required on the targeted device. Because no public proof-of-concept is currently published and the issue is not listed in the CISA Known Exploited Vulnerabilities catalog, opportunistic exploitation in the wild has not been confirmed.

No verified exploit code is available. Technical details should be obtained from the Samsung CVE-2024-27362 Advisory.

Detection Methods for CVE-2024-27362

Indicators of Compromise

No public indicators of compromise have been associated with CVE-2024-27362 at this time.
Unexpected baseband resets, abnormal modem logs, or unusual cellular protocol traffic targeting devices with Exynos 1280, 2200, 1330, 1380, or 2400 chipsets may warrant investigation.

Detection Strategies

Inventory mobile devices and IoT endpoints to identify those built on affected Samsung Exynos processors.
Monitor for anomalous over-the-air signaling and malformed protocol messages directed at managed mobile fleets.
Correlate firmware version data from mobile device management (MDM) platforms against Samsung Semiconductor security update bulletins.

Monitoring Recommendations

Ingest MDM and EMM telemetry into a centralized analytics platform to track patch level compliance across Exynos-based devices.
Alert on devices that remain on firmware versions predating Samsung's CVE-2024-27362 fix.
Review cellular carrier and enterprise mobility logs for repeated baseband anomalies that could indicate exploitation attempts.

How to Mitigate CVE-2024-27362

Immediate Actions Required

Apply the latest Samsung Exynos firmware update referenced in the vendor advisory to all affected devices.
Coordinate with device OEMs and mobile carriers to confirm that firmware updates have propagated to end users.
Prioritize remediation on devices that process sensitive data or operate in high-risk environments.

Patch Information

Samsung Semiconductor published remediation guidance in its product security update portal. Refer to the Samsung Product Security Updates page and the Samsung CVE-2024-27362 Advisory for affected firmware versions and update instructions. Device-level patches are delivered through the corresponding handset manufacturer's monthly security maintenance releases.

Workarounds

No vendor-supplied workaround has been published; applying the firmware update is the supported remediation path.
Restrict exposure of affected devices to untrusted cellular networks where feasible until patches are deployed.
Enforce MDM policies that require devices to maintain current security patch levels before accessing corporate resources.

bash

# Example: query Android device for build and security patch level via ADB
adb shell getprop ro.build.version.security_patch
adb shell getprop ro.boot.hardware
adb shell getprop ro.hardware