CVE-2023-21489
Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a...
Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a physical attacker to execute arbitrary code.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a physical attacker to execute arbitrary code.
- Record
CVE-2023-21489- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2023-25657
Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a physical attacker to execute arbitrary code.
- Record
EUVD-2023-25657- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jqmg-5jqp-94q9
Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a...
Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a physical attacker to execute arbitrary code.
- Record
GHSA-jqmg-5jqp-94q9- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a physical attacker to execute arbitrary code.
- Record
CVE-2023-21489- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- 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-2023-21489 is a high vulnerability (CVSS 7.1) in Samsung Android, published May 4, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 18th percentile. No source names a fixed version.