CVE-2023-4257
CRITICALCVSS 9.8/10EPSS 0.87%
Last modified
CVE-2023-4257 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Unchecked user input length in /subsys/net/l2/wifi/wifi_shell.c can cause buffer overflows.. EPSS estimates a 0.87% chance of exploitation in the next 30 days.
Description
Unchecked user input length in /subsys/net/l2/wifi/wifi_shell.c can cause buffer overflows.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zephyrproject | Zephyr | <= 3.4.0 |
References
- http://packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.htmlExploit, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Nov/1Mailing List, Third Party Advisory
- https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-853q-q69w-gf5jExploit, Vendor Advisory
- http://packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.htmlExploit, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Nov/1Mailing List, Third Party Advisory
- https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-853q-q69w-gf5jExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-4257?
Unchecked user input length in /subsys/net/l2/wifi/wifi_shell.c can cause buffer overflows.
How severe is CVE-2023-4257?
CVE-2023-4257 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.87% probability of exploitation in the next 30 days.
How do I fix CVE-2023-4257?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-4257?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST