CVE-2026-19108: Use After Free in MZ Automation libiec61850
CVE-2026-19108 is a use-after-free vulnerability in MZ Automation libiec61850 versions 1.6.0 and 1.6.1. It occurs in the function deleteDataSetValuesShadowBuffer within the URCB Revalidation component. The vulnerability requires local access to exploit and has a medium severity rating. An exploit has been publicly disclosed. Upgrading to version 1.6.2 addresses the issue.
AI Analysis
Technical Summary
This vulnerability affects the libiec61850 library by MZ Automation, specifically in the deleteDataSetValuesShadowBuffer function of src/iec61850/server/mms_mapping/reporting.c. The flaw is a use-after-free condition that can be triggered locally. The issue has been fixed in version 1.6.2, with the patch identified by commit 486fd57f3aed65bb9d636ff00f9ddce2e450b168. The CVSS 4.0 base score is 4.8, indicating medium severity, with local attack vector and low complexity.
Potential Impact
Successful exploitation could lead to use-after-free memory corruption, potentially causing application instability or other unintended behavior. The attack requires local access and no privileges escalation or user interaction is needed. No known active exploitation in the wild has been reported.
Mitigation Recommendations
Upgrade libiec61850 to version 1.6.2 or later to remediate this vulnerability. This upgrade contains the official fix for the use-after-free issue. No additional mitigations are indicated by the vendor advisory.
CVE-2026-19108: Use After Free in MZ Automation libiec61850
Description
CVE-2026-19108 is a use-after-free vulnerability in MZ Automation libiec61850 versions 1.6.0 and 1.6.1. It occurs in the function deleteDataSetValuesShadowBuffer within the URCB Revalidation component. The vulnerability requires local access to exploit and has a medium severity rating. An exploit has been publicly disclosed. Upgrading to version 1.6.2 addresses the issue.
CVSS v4.0
Score 4.8medium
Affected software
pkg:github/mz-automation/libiec61850cpe:2.3:a:mz_automation:libiec61850:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the libiec61850 library by MZ Automation, specifically in the deleteDataSetValuesShadowBuffer function of src/iec61850/server/mms_mapping/reporting.c. The flaw is a use-after-free condition that can be triggered locally. The issue has been fixed in version 1.6.2, with the patch identified by commit 486fd57f3aed65bb9d636ff00f9ddce2e450b168. The CVSS 4.0 base score is 4.8, indicating medium severity, with local attack vector and low complexity.
Potential Impact
Successful exploitation could lead to use-after-free memory corruption, potentially causing application instability or other unintended behavior. The attack requires local access and no privileges escalation or user interaction is needed. No known active exploitation in the wild has been reported.
Mitigation Recommendations
Upgrade libiec61850 to version 1.6.2 or later to remediate this vulnerability. This upgrade contains the official fix for the use-after-free issue. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-06T13:58:41.401Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7506f8bf8831d5395f5557
Added to database: 08/06/2026, 22:13:12 UTC
Last enriched: 08/06/2026, 23:42:23 UTC
Last updated: 08/07/2026, 01:21:20 UTC
Views: 3
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