What’s Vulnerable › Vulnerabilities

CVE-2021-26730: spx_restservice Login_handler_func Subfunction Stack-Based Buffer Overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% 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-121

Description

A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root). 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-2021-26730/
• https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
• https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26730/

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