What’s Vulnerable › Vulnerabilities

CVE-2021-4228: Hard-coded TLS Certificate

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-24 · updated 2026-06-17
• Weakness: CWE-321

Description

Use of hard-coded TLS certificate by default allows an attacker to perform Man-in-the-Middle (MitM) attacks even in the presence of the HTTPS connection. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.00.0.

Affected products

• Lannerinc Iac-Ast2500 Firmware: 1.00.0

References

• https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
• https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-4228/
• https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
• https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-4228/

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