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
Metrics
Affected Vendors & Products
References
History
Fri, 07 Aug 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mz-automation
Mz-automation lib60870 |
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| Vendors & Products |
Mz-automation
Mz-automation lib60870 |
Thu, 06 Aug 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Heap-based Buffer Overflow in lib60870-C 2.4.0 ASDU Encoding Path |
Thu, 06 Aug 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
cvssV3_1
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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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Status: PUBLISHED
Assigner: mitre
Published: 2026-08-05T00:00:00.000Z
Updated: 2026-08-06T12:23:51.488Z
Reserved: 2026-07-30T00:00:00.000Z
Link: CVE-2026-67873
Updated: 2026-08-06T12:23:13.411Z
Status : Received
Published: 2026-08-06T00:16:54.380
Modified: 2026-08-06T13:18:23.587
Link: CVE-2026-67873
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