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CVE-2026-23748— Golioth Firmware SDK < 0.22.0 LightDB State Out-of-Bounds Read

CVSS 3.7 · Low EPSS 0.05% · P16
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I. Basic Information for CVE-2026-23748

Vulnerability Information
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Vulnerability Title
Golioth Firmware SDK < 0.22.0 LightDB State Out-of-Bounds Read
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数下溢(超界折返)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Golioth Firmware SDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Golioth Firmware SDK是Golioth开源的一个软件开发工具包。 Golioth Firmware SDK 0.10.0至0.22.0之前版本存在安全漏洞，该漏洞源于LightDB State字符串解析中存在越界读取，可能导致崩溃或拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
GoliothFirmware SDK 0.10.0 ~ 0.22.0 -

II. Public POCs for CVE-2026-23748

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III. Intelligence Information for CVE-2026-23748

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Same Patch Batch · Golioth · 2026-02-26 · 4 CVEs total

CVE-2026-237508.1 HIGHGolioth Pouch < [INSERT FIXED VERSION] BLE GATT Heap-based Buffer Overflow
CVE-2026-237473.7 LOWGolioth Firmware SDK < 0.22.0 Payload Utils Stack-based Buffer Overflow
CVE-2026-237492.9 LOWGolioth Firmware SDK < 0.22.0 Blockwise Transfer Path Out-of-Bounds Read

IV. Related Vulnerabilities

Same product: Firmware SDK
Same vendor: Golioth
Same weakness: CWE-191

V. Comments for CVE-2026-23748

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