CVE-2025-66330: Huawei HarmonyOS · Information Exposure
Affects Huawei HarmonyOSSource CVE Database V5
Not known to be exploited · CVSS 4.9 Medium.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.09% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 8 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Huawei HarmonyOS | Affected
| Fixed in– |
AI-suggested
To mitigate the risks posed by CVE-2025-66330, European organizations should implement several targeted measures: 1) Enforce strict physical security controls to prevent unauthorized access to devices, including secure storage and access policies. 2) Educate users about the importance of not leaving devices unattended and recognizing suspicious activity requiring user interaction. 3) Monitor device usage and file access logs for unusual patterns that could indicate exploitation attempts. 4) Limit the use of Huawei HarmonyOS devices in sensitive environments until patches are available. 5) Establish a rapid patch management process to apply security updates as soon as Huawei releases fixes. 6) Consider deploying mobile device management (MDM) solutions to enforce security policies, including app lock configurations and remote wipe capabilities. 7) Conduct regular security audits and penetration testing focusing on mobile device security. 8) Coordinate with Huawei support channels to receive timely vulnerability disclosures and patches. These measures go beyond generic advice by focusing on physical security, user awareness, and proactive monitoring tailored to the vulnerability's exploitation requirements.
Description
App lock verification bypass vulnerability in the file management app. Impact: Successful exploitation of this vulnerability may affect service confidentiality.