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CVE-2021-26727

10.0 · CRITICAL

Multiple command injections and stack-based buffer overflows vulnerabilities in the SubNet_handler_func function of spx_restservice allow an attacker to execute arbitrary code with the same privile…

Published Oct 24, 2022CWE-94EPSS 2.39%

Overview

CVE-2021-26727 is a critical-severity vulnerability. It was published on October 24, 2022 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Multiple command injections and stack-based buffer overflows vulnerabilities in the SubNet_handler_func function of spx_restservice allow 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/Refwww.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26727/Refwww.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/Refwww.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26727/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-26727?

CVE-2021-26727 is a critical-severity vulnerability. It was published on October 24, 2022 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2021-26727?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-26727?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-26727?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-26727 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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