mz-automation libiec61850 up to 1.6.1 Report Sending Path reporting.c Reporting_RCBWriteAccessHandler free of memory not on the heap

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8$0-$5k1.26

Summaryinfo

A vulnerability was found in mz-automation libiec61850 up to 1.6.1. It has been classified as problematic. This issue affects the function Reporting_RCBWriteAccessHandler of the file src/iec61850/server/mms_mapping/reporting.c of the component Report Sending Path Handler. This manipulation causes free of memory not on the heap. This vulnerability is handled as CVE-2026-18582. The attack can be initiated remotely. Additionally, an exploit exists. Upgrading the affected component is recommended. The vendor was contacted early about this disclosure.

Detailsinfo

A vulnerability has been found in mz-automation libiec61850 up to 1.6.1 and classified as problematic. Affected by this vulnerability is the function Reporting_RCBWriteAccessHandler of the file src/iec61850/server/mms_mapping/reporting.c of the component Report Sending Path Handler. The manipulation with an unknown input leads to a free of memory not on the heap vulnerability. The CWE definition for the vulnerability is CWE-590. The product calls free() on a pointer to memory that was not allocated using associated heap allocation functions such as malloc(), calloc(), or realloc(). As an impact it is known to affect availability.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-18582. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure.

Upgrading to version 1.6.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5b2a69f44256b8548927d8afdd7ac5f5381abe1e 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Free of memory not on the heap
CWE: CWE-590
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: libiec61850 1.6.2
Patch: 5b2a69f44256b8548927d8afdd7ac5f5381abe1e

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-7qg8-hm25-rv5v
Status: Confirmed

CVE: CVE-2026-18582 (🔒)
GCVE (CVE): GCVE-0-2026-18582
GCVE (VulDB): GCVE-100-385411
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/02/2026 21:19
Changes: 08/02/2026 21:19 (65)
Complete: 🔍
Submitter: Carnegie
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #844920: MZ Automation GmbH libiec61850 1.6.1 Memory Corruption (by Carnegie)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!