CVE-2022-39891 is a medium-severity vulnerability classified as CWE-125 (Out-of-bounds Read) found in Samsung Mobile's Editor Lite application, specifically within the parse_pce function of the libsavsaudio.so library. This vulnerability arises due to improper bounds checking in the heap memory during the parsing of audio data, which can lead to an out-of-bounds read condition. An attacker exploiting this flaw can potentially read sensitive information from memory, which may include data that should otherwise be protected. The vulnerability affects versions of Editor Lite prior to 4.0.41.3, although the exact affected versions are unspecified. The CVSS v3.1 base score is 4.3, indicating a medium severity level. The vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N) reveals that exploitation requires local access (AV:L), has low attack complexity (AC:L), does not require privileges (PR:N) or user interaction (UI:N), and impacts confidentiality with a low impact (C:L) but does not affect integrity or availability. The scope is changed (S:C), meaning the vulnerability affects resources beyond the vulnerable component. No known exploits are currently reported in the wild, and no patches have been explicitly linked, although the vendor has reserved the CVE and published the vulnerability information. The vulnerability is limited to Samsung Mobile Editor Lite, a mobile application used primarily on Samsung devices, which processes audio data and is likely pre-installed or available on Samsung smartphones. The flaw resides in a native library (libsavsaudio.so), which is responsible for audio parsing, indicating that crafted audio files could trigger the vulnerability when processed by the application.

For European organizations, the impact of CVE-2022-39891 is primarily related to confidentiality breaches on Samsung mobile devices running the vulnerable Editor Lite application. Since the vulnerability requires local access and does not need user interaction or privileges, exploitation would typically require an attacker to have physical access to the device or to have already compromised the device to some extent (e.g., via malware or local access). The out-of-bounds read could allow attackers to extract sensitive information from memory, potentially including user data or cryptographic material, which could facilitate further attacks or data leakage. However, the vulnerability does not allow code execution, privilege escalation, or denial of service, limiting its impact to information disclosure. Organizations with employees using Samsung devices for sensitive communications or data processing could face risks of data leakage if devices are lost, stolen, or compromised. The scope change in the CVSS vector suggests that the vulnerability affects components beyond the immediate library, potentially impacting other parts of the application or system. While no active exploits are known, the presence of this vulnerability increases the attack surface and could be leveraged in targeted attacks against high-value individuals or corporate assets. The impact is more pronounced in sectors where mobile device security is critical, such as finance, government, and critical infrastructure.

1. Immediate update: Organizations should ensure that all Samsung devices running Editor Lite are updated to version 4.0.41.3 or later, where the vulnerability is fixed. Since no direct patch links are provided, users should rely on official Samsung updates via the Galaxy Store or system updates. 2. Restrict local access: Implement strict physical security controls to prevent unauthorized physical access to devices, including device lock policies, secure storage, and employee training on device handling. 3. Application control: Where possible, restrict the installation or usage of Editor Lite on corporate devices if it is not essential, or replace it with alternative applications that do not have this vulnerability. 4. Monitor device integrity: Deploy mobile device management (MDM) solutions that can detect unusual behavior or unauthorized access attempts on Samsung devices. 5. Harden device configurations: Enable device encryption, strong authentication, and disable unnecessary services to reduce the risk of local exploitation. 6. Incident response readiness: Prepare to investigate potential data leakage incidents involving Samsung devices and ensure logs and forensic tools are in place to detect exploitation attempts. 7. User awareness: Educate users about the risks of opening untrusted audio files or applications that might trigger the vulnerability.