What’s Vulnerable › Vulnerabilities

CVE-2021-44769: TLS Certificate Generation Function Improper Input Validation

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% 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-20

Description

An improper input validation vulnerability in the TLS certificate generation function allows an attacker to cause a Denial-of-Service (DoS) condition which can only be reverted via a factory reset. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Affected products

• Lanner Inc IAC-AST2500A: 1.10.0

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-2021-44769/
• https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
• https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-44769/

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