{"id":"CVE-2026-61893","title":"A crafted IEC 60870-5-104 I-frame with TypeID 104 (C_TS_NA_1) and an \ninflated object count causes TestCommand_getFromBuffer to read one byte \npast the end of the heap-allocated message buffer.","summary":"A crafted IEC 60870-5-104 I-frame with TypeID 104 (C_TS_NA_1) and an \ninflated object count causes TestCommand_getFromBuffer to read one byte \npast the end of the heap-allocated message buffer.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","cwe":["CWE-125"],"published":"2026-07-30","updated":"2026-09-08","sourceUpdated":"2026-09-08T19:30:43.093","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61893","references":[{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-11.json","label":"ics-cert@hq.dhs.gov"},{"url":"https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm","label":"ics-cert@hq.dhs.gov"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-11","label":"ics-cert@hq.dhs.gov"},{"url":"https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00403,"epssPercentile":0.34257,"ingestedAt":"2026-09-08T20:10:03.155Z","slug":"CVE-2026-61893","body":"## Overview\n\nA crafted IEC 60870-5-104 I-frame with TypeID 104 (C_TS_NA_1) and an \ninflated object count causes TestCommand_getFromBuffer to read one byte \npast the end of the heap-allocated message buffer.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}