CVE-2021-25338
Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1...
Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to write certain part of RKP EL2 memory region.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to write certain part of RKP EL2 memory region.
- Record
CVE-2021-25338- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2021-12234
Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to write certain part of RKP EL2 memory region.
- Record
EUVD-2021-12234- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q4vp-79rq-94cg
Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1...
Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to write certain part of RKP EL2 memory region.
- Record
GHSA-q4vp-79rq-94cg- CVSS 3.1
- 5.2 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to write certain part of RKP EL2 memory region.
- Record
CVE-2021-25338- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L - CVSS 3.1
- 5.2 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - CVSS 2.0
- 3.6 Low
AV:L/AC:L/Au:N/C:N/I:P/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-2021-25338 is a medium vulnerability (CVSS 4.4) in Samsung Mobile Devices, published March 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.