VulnerabilityModified
CVE-2020-27890
It crashes in zclParseInWriteCmd() and does not update the specific attribute's value.
HIGH 8.2EPSS 0.97%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does not properly process a ZCL Write Attributes No Response message. It crashes in zclParseInWriteCmd() and does not update the specific attribute's value.
- CVSS 3.1
- 8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- EPSS
- 0.97% probability · 60th percentile
- CISA KEV
- Not listed
- Affected
- ti/z-stack
- Source
- cve@mitre.org
References
- https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilitiesThird Party Advisory
- https://www.ti.com/tool/Z-STACKProduct, Vendor Advisory
- https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilitiesThird Party Advisory
- https://www.ti.com/tool/Z-STACKProduct, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.