{"id":"CVE-2026-68908","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-68908","generatedAt":"2026-10-28T00:53:48.714Z","title":"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.","description":"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.","published":"2026-10-16T16:20:01.000Z","lastModified":"2026-10-16T20:04:30.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-590","CWE-664","CWE-763"],"affected":[],"epss":{"score":0.00451,"percentile":0.3891,"date":"2026-10-26","history":[{"date":"2026-10-17","score":0.00451,"percentile":0.37732}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-16T16:20:01.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-16T16:20:01.140Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://github.com/mz-automation/libiec61850/commit/5b2a69f44256b8548927d8afdd7ac5f5381abe1e","source":"security-advisories@github.com"},{"url":"https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2","source":"security-advisories@github.com"},{"url":"https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v","source":"security-advisories@github.com"},{"url":"https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68908","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}