Buffer overflow in Zephyrproject Zephyr
CVE-2023-5753
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.009 (57.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hmpr-px56-rvww (Exploit, Vendor Advisory)
- www.openwall.com/lists/oss-security/2023/11/07/1 (Mailing List)
- seclists.org/fulldisclosure/2023/Nov/1 (Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-5753?
- CVE-2023-5753 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.3/10. Published 2023-10-25.
- How severe is CVE-2023-5753?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2023-5753 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.