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CVE-2026-23748

3.7 · LOW

Golioth Firmware SDK version 0.10.0 prior to 0.22.0, fixed in commit d7f55b38, contain an out-of-bounds read in LightDB State string parsing.

Published Feb 26, 2026CWE-191EPSS 0.28%

Overview

CVE-2026-23748 is a low-severity vulnerability. It was published on February 26, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Golioth Firmware SDK version 0.10.0 prior to 0.22.0, fixed in commit d7f55b38, contain an out-of-bounds read in LightDB State string parsing. When processing a string payload, a payload_size value less than 2 can cause a size_t underflow when computing the number of bytes to copy (nbytes). The subsequent memcpy() reads past the end of the network buffer, which can crash the device. The condition is reachable from on_payload, and golioth_payload_is_null() does not block payload_size==1. A malicious server or MITM can trigger a denial of service.

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

Refblog.secmate.dev/posts/golioth-vulnerabilities-disclosure/GitHubgithub.com/golioth/golioth-firmware-sdk/commit/d7f55b380d8be8b29bd101ce06e421af2e88c12bGitHubgithub.com/golioth/golioth-firmware-sdk/releases/tag/v0.22.0Refsecmate.dev/disclosures/SECMATE-2025-0016Refwww.vulncheck.com/advisories/golioth-firmware-sdk-lightdb-state-out-of-bounds-read

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23748?

CVE-2026-23748 is a low-severity vulnerability. It was published on February 26, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-23748?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-23748?

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-2026-23748?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23748 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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