CVE-2020-12140
HIGHCVSS 8.8/10EPSS 0.92%
Last modified
CVE-2020-12140 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A buffer overflow in os/net/mac/ble/ble-l2cap.c in the BLE stack in Contiki-NG 4.4 and earlier allows an attacker to execute arbitrary code via malicious L2CAP frames.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.
Description
A buffer overflow in os/net/mac/ble/ble-l2cap.c in the BLE stack in Contiki-NG 4.4 and earlier allows an attacker to execute arbitrary code via malicious L2CAP frames.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Contiki-Ng | Contiki-Ng | <= 4.4 |
References
- https://github.com/contiki-ng/contiki-ng/pull/1662Patch, Third Party Advisory
- https://twitter.com/ScepticCtfThird Party Advisory
- https://github.com/contiki-ng/contiki-ng/pull/1662Patch, Third Party Advisory
- https://twitter.com/ScepticCtfThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-12140?
A buffer overflow in os/net/mac/ble/ble-l2cap.c in the BLE stack in Contiki-NG 4.4 and earlier allows an attacker to execute arbitrary code via malicious L2CAP frames.
How severe is CVE-2020-12140?
CVE-2020-12140 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12140?
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-2020-12140?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST