{"id":"CVE-2020-27890","aliases":["EUVD-2020-20383","GHSA-v82x-vfgp-hw2x"],"status":"published","title":"The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does...","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.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00965,"percentile":0.62155,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2020-10-27T20:26:11Z","modified":"2026-06-17T03:09:47Z","products":[{"vendor":"ti","product":"z-stack"}],"references":[{"url":"https://www.ti.com/tool/Z-STACK","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27890"},{"url":"https://github.com/advisories/GHSA-v82x-vfgp-hw2x"}],"sources":{"cve":[{"id":"CVE-2020-27890","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.","status":"published","published":"2020-10-27T20:26:11Z","modified":"2024-08-04T16:25:43.594Z","updated_at":"2026-11-02T14:35:53.236501Z"}],"euvd":[{"id":"EUVD-2020-20383","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.","status":"published","published":"2020-10-27T20:26:11Z","modified":"2024-08-04T16:25:43Z","updated_at":"2026-11-03T03:07:11.320494Z"}],"ghsa":[{"id":"GHSA-v82x-vfgp-hw2x","title":"The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does...","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.","status":"published","published":"2022-05-24T17:32:37Z","modified":"2023-01-29T05:04:35Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:45:35.654176Z"}],"nvd":[{"id":"CVE-2020-27890","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.","status":"published","published":"2020-10-27T21:15:14.087Z","modified":"2026-06-17T03:09:47.78Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:21.80969Z"}]}}