CVE-2026-18582
MEDIUMDescription
A security flaw has been discovered in mz-automation libiec61850 up to 1.6.1. This vulnerability affects the function Reporting_RCBWriteAccessHandler of the file src/iec61850/server/mms_mapping/reporting.c of the component Report Sending Path Handler. The manipulation results in free of memory not on the heap. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.2 is able to resolve this issue. The patch is identified as 5b2a69f44256b8548927d8afdd7ac5f5381abe1e. It is suggested to upgrade the affected component. The vendor was contacted early about this disclosure.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 40% of all known CVEs.
References
Related Vulnerabilities
Other CWE-590 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2020-6016 | Critical | 9.8 | 5.8% | - | Fix |
| CVE-2022-31625 | High | 8.1 | 3.7% | - | Fix |
| CVE-2021-42377 | Critical | 9.8 | 3.4% | - | Fix |
| CVE-2022-31627 | High | 7.7 | 2.0% | - | Fix |
| CVE-2023-25565 | High | 7.5 | 1.1% | - | Fix |
| CVE-2025-32911 | Critical | 9.0 | 0.9% | - | Fix |
Common questions
How do I fix CVE-2026-18582?
No published fix for CVE-2026-18582 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-18582 being actively exploited?
Not that we know of. CVE-2026-18582 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.50% is the estimated probability that it will be exploited in the next 30 days. That is higher than 40% of all scored CVEs.
How severe is CVE-2026-18582?
CVE-2026-18582 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-03.