01 Record
CVE-2026-18582
mz-automation libiec61850 Report Sending Path reporting.c Reporting_RCBWriteAccessHandler free of memory not on the heap
MediumPUBLISHEDCNA: VulDB
CNA base score6.9 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
02 Description
mz-automation libiec61850 Report Sending Path reporting.c Reporting_RCBWriteAccessHandler free of memory not on the heap
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.85% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 58.2% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-03 01:15Z2 MO AGO
- Last updated
- 2026-08-03 15:39Z2 MO AGO
- Reserved
- 2026-08-02
- Assigning CNA
- VulDB
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.9)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
- Weaknesses
- CWE-590Free of Memory not on the HeapVariant
- Data version
- 5.2
- Document digest
- 4c4e1657dfd1ce0e63cdce4d3deea5656f20a8fc826afdffbbc6583844de951a
05 Affected products
VendorProductVersionsPlatforms
06 References
- vuldb.comVDB-385411 | mz-automation libiec61850 Report Sending Path reporting.c Reporting_RCBWriteAccessHandler free of memory not on the heaphttps://vuldb.com/vuln/385411
- vuldb.comVDB-385411 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/385411/cti
- vuldb.comCVE-2026-18582 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-18582
- vuldb.comSubmit #844920 | MZ Automation GmbH libiec61850 1.6.1 Memory Corruptionhttps://vuldb.com/submit/844920
- github.comhttps://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v
- github.comhttps://github.com/gff-cw/information/issues/2
- github.comhttps://github.com/mz-automation/libiec61850/commit/5b2a69f44256b8548927d8afdd7ac5f5381abe1e
- github.comhttps://github.com/mz-automation/libiec61850/releases/tag/v1.6.2
- github.comhttps://github.com/mz-automation/libiec61850/