HarmonyOS: Out-of-bounds Read
CVE-2025-58314 is a high-severity out-of-bounds read vulnerability in HarmonyOS from Huawei, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected HarmonyOS versions: 5.1.0; 5.0.1; 6.0.0, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.1% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of HarmonyOS you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on consumer.huawei.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Huawei | HarmonyOS | 5.1.0; 5.0.1; 6.0.0; 4.3.1; 4.3.0; 4.2.0; 4.0.0; 3.1.0; and 2 more ranges | Not stated |
| Huawei | EMUI | 15.0.0; 14.2.0; 14.0.0; 13.0.0; 12.0.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.6 | Medium | CNA (huawei.com) |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
Vulnerability of accessing invalid memory in the component driver module. Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in HarmonyOS
- 7.1 High severity
- 8.6 High severity
Recent Out-of-bounds Read vulnerabilities
- 7.4 High severity
- 7.5 High severity
- 7.1 High severity
- 7.5 High severity
- 7.8 High severity
- 7.8 High severity
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