mz-automation libiec61850 up to 1.6.1 MMS ObtainFile Task mms_file_service.c fileHandle double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k3.79

Summaryinfo

A vulnerability was found in mz-automation libiec61850 up to 1.6.1 and classified as problematic. This vulnerability affects the function MmsObtainFileTask::fileHandle of the file src/mms/iso_mms/server/mms_file_service.c of the component MMS ObtainFile Task Handler. The manipulation results in double free. This vulnerability is known as CVE-2026-57446. It is possible to launch the attack remotely. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in mz-automation libiec61850 up to 1.6.1. Affected is the function MmsObtainFileTask::fileHandle of the file src/mms/iso_mms/server/mms_file_service.c of the component MMS ObtainFile Task Handler. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-57446. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Upgrading to version 1.6.2 eliminates this vulnerability. Applying the patch d86b4a9c7a903641819235e1678b18901518f3cd is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: libiec61850 1.6.2
Patch: d86b4a9c7a903641819235e1678b18901518f3cd

Timelineinfo

08/02/2026 Advisory disclosed
08/02/2026 +0 days VulDB entry created
08/02/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-cxgr-7v9h-fj9p
Status: Confirmed

CVE: CVE-2026-57446 (🔒)
GCVE (CVE): GCVE-0-2026-57446
GCVE (VulDB): GCVE-100-385410
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/02/2026 21:12
Changes: 08/02/2026 21:12 (62)
Complete: 🔍
Submitter: Carnegie
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #844678: MZ Automation GmbH libiec61850 1.6.1; fixed version not confirmed Double Free (by Carnegie)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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