CVE-2020-27891

7.5 highEPSS 1.5%

High (7.5) in ti z-stack. EPSS 1.5% chance of exploitation in the next 30 days.

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().

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
Published: 2020-10-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ti:z-stack

References

https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities
https://www.ti.com/tool/Z-STACK
https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities
https://www.ti.com/tool/Z-STACK

Check your stack JSON