CVE-2021-25471
A lack of replay attack protection in Security Mode Command process prior to SMR Oct-2021 Release...
A lack of replay attack protection in Security Mode Command process prior to SMR Oct-2021 Release 1 can lead to denial of service on mobile network connection and battery depletion.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
A lack of replay attack protection in Security Mode Command process prior to SMR Oct-2021 Release 1 can lead to denial of service on mobile network connection and battery depletion.
- Record
CVE-2021-25471- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2021-12367
A lack of replay attack protection in Security Mode Command process prior to SMR Oct-2021 Release 1 can lead to denial of service on mobile network connection and battery depletion.
- Record
EUVD-2021-12367- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v959-6vw5-5vwp No score
A lack of replay attack protection in Security Mode Command process prior to SMR Oct-2021 Release...
A lack of replay attack protection in Security Mode Command process prior to SMR Oct-2021 Release 1 can lead to denial of service on mobile network connection and battery depletion.
- Record
GHSA-v959-6vw5-5vwp- Updated
- 2026-11-02
NVD
A lack of replay attack protection in Security Mode Command process prior to SMR Oct-2021 Release 1 can lead to denial of service on mobile network connection and battery depletion.
- Record
CVE-2021-25471- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- 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-2021-25471 is a low vulnerability (CVSS 3.7) in Google Android, published October 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. No source names a fixed version.