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
Published: 2026-08-05
Score: n/a
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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History

Thu, 06 Aug 2026 00:45:00 +0000

Type Values Removed Values Added
Title Heap-based Buffer Overflow in lib60870-C 2.4.0 ASDU Encoding Path
Weaknesses CWE-122

Wed, 05 Aug 2026 23:30:00 +0000

Type Values Removed Values Added
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
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-08-05T23:14:56.253Z

Reserved: 2026-07-30T00:00:00.000Z

Link: CVE-2026-67873

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-08-06T00:30:03Z

Weaknesses