CVE-2023-5753
Potential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystem
HIGH
8.8
CVSS Score
Published: October 24, 2023 at 04:09 PM UTC
Updated: June 17, 2026 at 06:49 AM UTC
2 products affected across 2 vendorsZephyrZephyr
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Severity
HIGH8.8
Exploit prediction
EPSS 1%
Description
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 3.4.0
v < 3.5
Affected range stops below 3.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (4)
Mailing ListThird Party Advisory
Source: [email protected]
http://packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.htmlMailing ListThird Party Advisory
Source: [email protected]
http://seclists.org/fulldisclosure/2023/Nov/1ExploitVendor Advisory
Source: [email protected]
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hmpr-px56-rvwwCVSS
- Attack Vector
- ADJACENT_NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120CWE-191
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