CVE-2026-19206MZ Automation libiec61850 ASDU Element sv_subscriber.c SVReceiver_stopThreadless heap-based overflow
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A security flaw has been discovered in MZ Automation libiec61850 up to 1.6.1. This affects the function SVReceiver_stopThreadless of the file src/sampled_values/sv_subscriber.c of the component ASDU Element Handler. Performing a manipulation results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.2 is able to mitigate this issue. The patch is named a96bd674e0238276dd1387d31d52e55229d0771e. The affected component should be upgraded.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-122, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MZ Automation libiec61850 mz_automation:libiec61850 | 1.6.0; 1.6.1; 1.6.2 not affected | CNA record |
References
- https://vuldb.com/vuln/386950vdb-entry, technical-description
- https://vuldb.com/vuln/386950/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-19206third-party-advisory
- https://vuldb.com/submit/864840third-party-advisory
- https://github.com/mz-automation/libiec61850/issues/598exploit, issue-tracking
- https://github.com/mz-automation/libiec61850/issues/598#issuecomment-4858659113issue-tracking
- https://github.com/mz-automation/libiec61850/commit/a96bd674e0238276dd1387d31d52e55229d0771epatch
- https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.