Buffer overflow in Silabs Gecko OS
CVE-2024-23973
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Silicon Labs Gecko OS. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HTTP GET requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Silabs Gecko OS
- Silicon Labs Gecko OS — versions all versions
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-24-873/ (Third Party Advisory)
- community.silabs.com/a45Vm0000000Atp (Permissions Required)
Frequently asked questions
- What is CVE-2024-23973?
- CVE-2024-23973 is a high-severity vulnerability in Silabs Gecko OS, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-01-31.
- How severe is CVE-2024-23973?
- High severity. CVSS v3 base score is 8.8 out of 10.