CVE-2026-68908

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Source

https://cve.org/CVERecord?id=CVE-2026-68908

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68908.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-68908

Aliases

CVE-2026-18582
GHSA-7qg8-hm25-rv5v

Published

2026-10-16T15:47:25Z

Modified

2026-10-17T02:55:43Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator

Summary

libIEC61850: Oversized RptID can trigger invalid free of a stack-backed visible string in the report send path

Details

libIEC61850 is an open-source implementation of IEC 61850 client and server protocols including MMS, GOOSE, Sampled Values, and R-Session. Prior to 1.6.2, Reporting_RCBWriteAccessHandler accepts an RptID longer than 129 bytes in the report-control-block write path. When GI later causes sendNextReportEntrySegment to serialize the report, the function wraps rptIdBuf[130] as a temporary MmsValue and passes it to MmsValue_setVisibleString. The setter's resize path frees the stack-backed buffer, allowing a remote client to trigger an invalid free and server crash by writing the oversized RptID and then generating a report. This issue is fixed in version 1.6.2.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-590",
        "CWE-664",
        "CWE-763"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68908.json"
}

References

Affected packages

Git / github.com/mz-automation/libiec61850

Affected ranges

Type

GIT

Repo

https://github.com/mz-automation/libiec61850

Events

Introduced

Fixed

f0f797bf955da763353f7081c892a1ff6b55e5a1

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.6.2"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v1.*

v1.0.0

v1.0.1

v1.1

v1.2.0

v1.2.1

v1.2.2

v1.3.0

v1.4.0

v1.4.1

v1.6.0

v1.6.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68908.json"