CVE-2026-67873
Critical · 9.8CVSS
9.8
EPSS
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Published
Aug 6, 2026
CISA due date
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The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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