Android security update contains 2 actively exploited vulnerabilities

CVE-2024-43093 is a privilege escalation flaw in the Android Framework's ExternalStorageProvider (the component behind the system document/file picker), where the shouldHideDocument function mishandles Unicode normalization, allowing crafted file paths to bypass the filter that hides sensitive directories such as app-private storage (CWE-176). It is triggered locally: an app with no additional execution privileges can exploit it with user interaction, for example when a user selects a file or location through the documents UI. A successful bypass grants unauthorized access to otherwise protected directories and can lead to local escalation of privilege with high impact on confidentiality, integrity, and availability (CVSS 3.1 score 7.3, vector AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H). Any device running the Android Framework is in scope, meaning effectively the entire Android installed base, although the local access and user-interaction requirements limit practical exploitability to targeted scenarios. The flaw was added to CISA's Known Exploited Vulnerabilities catalog on 2024-11-07 and Google has indicated it may be under limited, targeted exploitation; no public proof-of-concept is known, and EPSS currently rates the 30-day exploitation probability at a modest 0.7%, though the KEV listing is the authoritative in-the-wild signal.

Do: Apply Google's Android security updates immediately — the fix is included in the November 2024 Android Security Bulletin (security patch level 2024-11-01) or later — and verify the device's security patch level in Settings; OEM devices (e.g., Samsung) may receive the fix through vendor updates on a lag. Per the CISA KEV required action, treat patching as urgent or apply vendor mitigations, and as an interim measure restrict sideloaded/untrusted app installs and caution users when picking files through the document picker. Ransomware linkage is unknown, and the user-interaction requirement means exploitation is targeted rather than wormable.

CVE-2024-50302 is a use of uninitialized resource flaw (CWE-908) in the Linux kernel's HID (Human Interface Device) core, where the shared report buffer was not zero-initialized at allocation. An attacker can trigger it by getting the kernel to process a specially crafted HID report, causing uninitialized kernel memory to be exposed to the requesting driver. The impact is an information disclosure: a local attacker, or a malicious/malfunctioning HID device, could leak kernel memory contents, which could in turn aid further attacks. Because nearly all Linux-based systems compile in HID support, affected code is present in Linux distributions, Android, and Siemens industrial products (SIMATIC S7-1500 TM MFP firmware and SINEC OS). The vulnerability is being actively exploited: CISA added it to the KEV catalog on 2025-03-04, and it is among the actively exploited flaws addressed in Google's March 2025 Android security update.

Do: Apply the fixes per vendor channels: install the March 2025 Android security update on Android devices (it is listed as actively exploited and is in CISA KEV, required under BOD 22-01 for federal agencies), and apply Debian kernel updates and Siemens (SIMATIC S7-1500 TM MFP firmware / SINEC OS) updates once issued. Operators should inventory systems running Linux kernels with the HID core (most systems) and prioritize patching, since a local attacker or malicious USB HID device can leak kernel memory; the fix zero-initializes the HID report buffer and is included in current stable kernel branches.