CVE-2020-27890 json
The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does not properly process a ZCL Write Attributes…
published 2020-10-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20383
- cvss
- 8.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
0.97% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
References
-
ti.com
/tool/Z-STACK
product, vendor-advisory
-
github.com
/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities
third-party-advisory
Sources
- CVE List CVE-2020-27890
- NVD CVE-2020-27890
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