CVE-2021-40055 json
There is a man-in-the-middle attack vulnerability during system update download in recovery mode.
published 2022-03-07 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27245
- cvss
- 5.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
There is a man-in-the-middle attack vulnerability during system update download in recovery mode. Successful exploitation of this vulnerability may affect integrity.
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 7.1 | AV:N/AC:M/Au:N/C:N/I:C/A:N |
Affected products
- Huawei EMUI
- Huawei Magic UI
- Huawei HarmonyOS
References
Sources
- CVE List CVE-2021-40055
- NVD CVE-2021-40055
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.