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CVE-2026-67873

CRITICAL CVSS: 9.8 Published: 2026-08-06 Modified: 2026-08-06

Description

A heap-based buffer overflow exists in lib60870-C 2.4.0 in the server-side FileSegment ASDU encoding path. The issue occurs because FileSegment_encode() validates only the standalone segment length via FileSegment_GetMaxDataSize() and does not verify the residual capacity of the current ASDU frame before encoding object fields and segment data

Affected Platforms

Unknown

Weakness Type

CWE-122

References