CVE-2025-66331
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of...
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of this vulnerability may affect availability.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
CVE-2025-66331- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - Weakness
- CWE-494
- Updated
- 2026-11-02
EUVDEUVD-2025-201676
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
EUVD-2025-201676- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-67gm-q459-3c6j
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of...
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
GHSA-67gm-q459-3c6j- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - Weakness
- CWE-494
- Updated
- 2026-11-02
NVD
Denial of service (DoS) vulnerability in the office service. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
CVE-2025-66331- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-494
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-66331 is a low vulnerability (CVSS 3.3) in Huawei Harmonyos, published December 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.06%, the 0th percentile. No source names a fixed version.