CVE-2023-5055
L2CAP: Possible Stack based buffer overflow in le_ecred_reconf_req()
Possible variant of CVE-2021-3434 in function le_ecred_reconf_req.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
L2CAP: Possible Stack based buffer overflow in le_ecred_reconf_req()
Possible variant of CVE-2021-3434 in function le_ecred_reconf_req.
- Record
CVE-2023-5055- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
EUVDEUVD-2023-57398
Possible variant of CVE-2021-3434 in function le_ecred_reconf_req.
- Record
EUVD-2023-57398- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H - Updated
- 2026-11-03
NVD
Possible variant of CVE-2021-3434 in function le_ecred_reconf_req.
- Record
CVE-2023-5055- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H - 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-121, CWE-787
- Updated
- 2026-11-02
OSV
L2CAP: Possible Stack based buffer overflow in le_ecred_reconf_req()
Possible variant of CVE-2021-3434 in function le_ecred_reconf_req.
- Record
CVE-2023-5055- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H - Weakness
- CWE-121
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-5055 is a high vulnerability (CVSS 8.3) in Zephyrproject Zephyr, published November 21, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. No source names a fixed version.