Dashboard / CVE-2026-23747

CVE-2026-23747

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 73/100
Published: 2026-02-26 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: Present
VC: None
VI: None
VA: Low

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
Golioth Firmware SDK 0.10.0 < 0.22.0

References & Advisories (5)

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.34%
Raw Score 0.003400
Percentile 27.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00340
2026-11-12
0.00340
2026-11-10
0.00340
2026-11-09
0.00340
2026-11-08
0.00340

Intelligence Sources

mitre ref →

External Links