CVE-2023-21503
Potential buffer overflow vulnerability in mm_LteInterRatManagement.c in Shannon baseband prior...
Potential buffer overflow vulnerability in mm_LteInterRatManagement.c in Shannon baseband prior to SMR May-2023 Release 1 allows remote attackers to cause invalid memory access.
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
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Potential buffer overflow vulnerability in mm_LteInterRatManagement.c in Shannon baseband prior to SMR May-2023 Release 1 allows remote attackers to cause invalid memory access.
- Record
CVE-2023-21503- CVSS 3.1
- 5.6 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2023-25671
Potential buffer overflow vulnerability in mm_LteInterRatManagement.c in Shannon baseband prior to SMR May-2023 Release 1 allows remote attackers to cause invalid memory access.
- Record
EUVD-2023-25671- CVSS 3.1
- 5.6 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v2x6-vx52-hr7m
Potential buffer overflow vulnerability in mm_LteInterRatManagement.c in Shannon baseband prior...
Potential buffer overflow vulnerability in mm_LteInterRatManagement.c in Shannon baseband prior to SMR May-2023 Release 1 allows remote attackers to cause invalid memory access.
- Record
GHSA-v2x6-vx52-hr7m- CVSS 3.1
- 5.6 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-20, CWE-120
- Updated
- 2026-11-02
NVD
Potential buffer overflow vulnerability in mm_LteInterRatManagement.c in Shannon baseband prior to SMR May-2023 Release 1 allows remote attackers to cause invalid memory access.
- Record
CVE-2023-21503- CVSS 3.1
- 5.6 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20, CWE-120
- 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-2023-21503 is a medium vulnerability (CVSS 5.6) 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 0.62%, the 50th percentile. No source names a fixed version.