What’s Vulnerable › Vulnerabilities

CVE-2021-28372

• Severity: high (CVSS 8.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-17 · updated 2026-06-17
• Weakness: CWE-290

Description

ThroughTek's Kalay Platform 2.0 network allows an attacker to impersonate an arbitrary ThroughTek (TUTK) device given a valid 20-byte uniquely assigned identifier (UID). This could result in an attacker hijacking a victim's connection and forcing them into supplying credentials needed to access the victim TUTK device.

Affected products

• ThroughTek P2P SDK: before 3.1.10 — fixed in 3.1.10

How to fix

Upgrade to a fixed version: ThroughTek P2P SDK 3.1.10. Check the vendor advisory for mitigations.

References

• https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0020/FEYE-2021-0020.md
• https://www.fireeye.com/blog/threat-research/2021/08/mandiant-discloses-critical-vulnerability-affecting-iot-devices.html
• https://www.throughtek.com/kalay_overview.html
• https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0020/FEYE-2021-0020.md
• https://www.fireeye.com/blog/threat-research/2021/08/mandiant-discloses-critical-vulnerability-affecting-iot-devices.html
• https://www.throughtek.com/kalay_overview.html

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