CVE-2021-40054
There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of...
There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of this vulnerability may affect integrity.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of this vulnerability may affect integrity.
- Record
CVE-2021-40054- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:C/A:N - Weakness
- CWE-191
- Updated
- 2026-11-02
CVE List No score
There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of this vulnerability may affect integrity.
- Record
CVE-2021-40054- Updated
- 2026-11-02
EUVDEUVD-2021-27244 No score
There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of this vulnerability may affect integrity.
- Record
EUVD-2021-27244- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-45cf-q4mp-fgvx
There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of...
There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of this vulnerability may affect integrity.
- Record
GHSA-45cf-q4mp-fgvx- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-191
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-40054 is a high vulnerability (CVSS 7.5) in Huawei Emui, published March 7, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. No source names a fixed version.