CVE-2026-34857
UAF vulnerability in the communication module. Impact: Successful exploitation of this...
UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
CVE-2026-34857- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H - Weakness
- CWE-362
- Updated
- 2026-11-02
EUVDEUVD-2026-21834
UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
EUVD-2026-21834- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-25rp-52g6-gv8j
UAF vulnerability in the communication module. Impact: Successful exploitation of this...
UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
GHSA-25rp-52g6-gv8j- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H - Weakness
- CWE-362
- Updated
- 2026-11-02
NVD
UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
- Record
CVE-2026-34857- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H - 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-362
- 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-2026-34857 is a medium vulnerability (CVSS 4.7) in Huawei Harmonyos, published April 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.07%, the 0th percentile. No source names a fixed version.