Vulnerability in Ti Cc2538
CVE-2020-27891
The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does not properly process a ZCL Read Reporting Configuration Response message. It crashes in zclHandleExternal().
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (72.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Ti Cc2538
- Ti Z-Stack — versions 3.0.1
Public proof-of-concept exploits
References
- www.ti.com/tool/Z-STACK (Product, Vendor Advisory)
- github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27891?
- CVE-2020-27891 is a high-severity vulnerability in Ti Cc2538. CVSS score: 7.5/10. Published 2020-10-27.
- How severe is CVE-2020-27891?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-27891 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.