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I. Basic Information for CVE-2026-23747
Vulnerability Information

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Vulnerability Title
Golioth Firmware SDK < 0.22.0 Payload Utils Stack-based Buffer Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
Golioth Firmware SDK version 0.10.0 prior to 0.22.0, fixed in commit 48f521b, contain a stack-based buffer overflow in Payload Utils. The golioth_payload_as_int() and golioth_payload_as_float() helpers copy network-supplied payload data into fixed-size stack buffers using memcpy() with a length derived from payload_size. The only length checks are guarded by assert(); in release builds, the asserts are compiled out and memcpy() may copy an unbounded payload_size. Payloads larger than 12 bytes (int) or 32 bytes (float) can overflow the stack, resulting in a crash/denial of service. This is reachable via LightDB State on_payload with a malicious server or MITM.
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
栈缓冲区溢出
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Payload Utils中存在基于栈的缓冲区溢出,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-2026-23747
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III. Intelligence Information for CVE-2026-23747
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