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 affects the function deleteDataSetValuesShadowBuffer in the URCB Revalidation component. The vulnerability requires local access to exploit and has a medium severity score of 4.8. An exploit has been publicly disclosed. Upgrading to version 1.6.2 addresses the issue.
AI Analysis
Technical Summary
This vulnerability in MZ Automation libiec61850 up to version 1.6.1 occurs in the deleteDataSetValuesShadowBuffer function within src/iec61850/server/mms_mapping/reporting.c, specifically in the URCB Revalidation component. The flaw results in a use-after-free condition that can be triggered locally. Public exploit code is available. The issue is resolved by upgrading to version 1.6.2, which includes the patch identified by commit 486fd57f3aed65bb9d636ff00f9ddce2e450b168.
Potential Impact
Successful exploitation of this vulnerability could lead to undefined behavior due to use-after-free, potentially causing application crashes or memory corruption. The attack requires local access and does not involve user interaction. The CVSS 4.8 score reflects a medium severity with low attack vector and privileges required.
Mitigation Recommendations
Upgrade the affected libiec61850 component to version 1.6.2 or later, which contains the fix for this use-after-free vulnerability. No other mitigation is indicated or required.
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 affects the function deleteDataSetValuesShadowBuffer in the URCB Revalidation component. The vulnerability requires local access to exploit and has a medium severity score of 4.8. An exploit has been publicly disclosed. Upgrading to version 1.6.2 addresses the issue.
CVSS v4.0
Score 4.8medium
Affected software
MZ Automation
libiec61850
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 in MZ Automation libiec61850 up to version 1.6.1 occurs in the deleteDataSetValuesShadowBuffer function within src/iec61850/server/mms_mapping/reporting.c, specifically in the URCB Revalidation component. The flaw results in a use-after-free condition that can be triggered locally. Public exploit code is available. The issue is resolved by upgrading to version 1.6.2, which includes the patch identified by commit 486fd57f3aed65bb9d636ff00f9ddce2e450b168.
Potential Impact
Successful exploitation of this vulnerability could lead to undefined behavior due to use-after-free, potentially causing application crashes or memory corruption. The attack requires local access and does not involve user interaction. The CVSS 4.8 score reflects a medium severity with low attack vector and privileges required.
Mitigation Recommendations
Upgrade the affected libiec61850 component to version 1.6.2 or later, which contains the fix for this use-after-free vulnerability. No other mitigation is indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-06T13:58:41.401Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a7506f8bf8831d5395f5557
Added to database: 08/06/2026, 22:13:12 UTC
Last enriched: 08/14/2026, 15:50:23 UTC
Last updated: 09/21/2026, 22:01:32 UTC
Views: 36
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