HOMEVULNERABILITIESCVE-2020-27892
HIGH

CVE-2020-27892

NVD-CWE-noinfoPublished: October 27, 2020· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does not properly process a ZCL Discover Commands Received Response message or a ZCL Discover Commands Generated Response message. It crashes in zclParseInDiscCmdsRspCmd().

NVD Source

Technical Analysis

CVE-2020-27892 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

ti2 product(s)
z-stackcc2538
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (4)

→
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

Quick Facts

CVE IDCVE-2020-27892
CVSS Score7.5 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedOct 27, 2020

Related CVEs (NVD-CWE-noinfo)

CVE-2014-2623
10.0
CVE-2008-5010
10.0
CVE-2008-4873
10.0
CVE-2017-3623
10.0
CVE-2015-6787
10.0
CVE-2006-3698
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-27892 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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