CVE-2026-57446: CWE-415: Double Free in mz-automation libiec61850
Description
libIEC61850 is an open-source implementation of IEC 61850 client and server protocols including MMS, GOOSE, Sampled Values, and R-Session. From 1.6.1 until 1.6.2, a successful MMS ObtainFile operation closes MmsObtainFileTask::fileHandle but leaves the stale non-NULL value in a task marked MMS_FILE_UPLOAD_STATE_NOT_USED. If a later ObtainFile request reuses that task and destination creation fails, MMS_FILE_UPLOAD_STATE_SEND_OBTAIN_FILE_ERROR_DESTINATION cleanup closes the stale FILE object again. Servers with the MMS file service and ObtainFile enabled can therefore be crashed remotely by the success-then-failure request sequence. This issue is fixed in version 1.6.2.
CVSS v3.1
Score 5.3medium
Affected software
mz-automation
libiec61850
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-24T13:21:20.730Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad24b622cdf04f65607013a
Added to database: 10/16/2026, 16:05:54 UTC
Last updated: 10/16/2026, 16:05:54 UTC
Views: 1
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