CVE-2025-22835
Published: 04 March 2025
Summary
CVE-2025-22835 is a low-severity Out-of-bounds Write (CWE-787) vulnerability in Openatom Openharmony. Its CVSS base score is 3.8 (Low).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 28.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-16 (Memory Protection) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates CVE-2025-22835 by requiring identification, testing, and installation of patches for the out-of-bounds write vulnerability in OpenHarmony.
Implements memory protection mechanisms that prevent out-of-bounds writes from enabling arbitrary code execution in pre-installed apps.
Validates inputs to the vulnerable pre-installed apps, reducing the risk of exploitation via malformed data causing the out-of-bounds write.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The OOB write vulnerability directly enables local low-privileged attackers to achieve arbitrary code execution in pre-installed applications (with scope change), mapping to exploitation for privilege escalation as it provides access beyond the attacker's initial context.
NVD Description
in OpenHarmony v5.0.2 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through out-of-bounds write. This vulnerability can be exploited only in restricted scenarios.
Deeper analysisAI
CVE-2025-22835 is an out-of-bounds write vulnerability (CWE-787) in OpenHarmony versions v5.0.2 and prior. It enables a local attacker to achieve arbitrary code execution within pre-installed applications.
A local attacker with low privileges can exploit this vulnerability with low attack complexity and no user interaction required (CVSS:3.1/AV:L/AC:L/PR:L/UI:N). Successful exploitation changes scope (S:C), resulting in low confidentiality impact (C:L) but no integrity or availability impact (I:N/A:N), for an overall base score of 3.8. Exploitation is restricted to specific scenarios.
Mitigation details are provided in the OpenHarmony security advisory at https://gitee.com/openharmony/security/blob/master/zh/security-disclosure/2025/2025-03.md.
Details
- CWE(s)