{"id":"CVE-2026-12665","aliases":["EUVD-2026-104465","GHSA-2ph8-cjp5-hwrv"],"status":"published","title":"IBM MQ Buffer Overflow","description":"IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00315,"percentile":0.24694,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-10-19T16:40:12Z","modified":"2026-10-23T17:21:42Z","products":[{"vendor":"ibm","product":"mq advanced container images"},{"vendor":"ibm","product":"mq operator"},{"vendor":"ibm","product":"mq_operator"},{"vendor":"ibm","product":"supplied_mq_advanced_container_images"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7292667","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12665"},{"url":"https://github.com/advisories/GHSA-2ph8-cjp5-hwrv"}],"sources":{"cve":[{"id":"CVE-2026-12665","title":"IBM MQ Buffer Overflow","description":"IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.","status":"published","published":"2026-10-19T16:40:12.974Z","modified":"2026-10-20T12:58:19.535Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-104465","description":"IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.","status":"published","published":"2026-10-19T16:40:12Z","modified":"2026-10-20T12:58:19Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:59:44.419021Z"}],"ghsa":[{"id":"GHSA-2ph8-cjp5-hwrv","title":"IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow...","description":"IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.","status":"published","published":"2026-10-19T18:32:16Z","modified":"2026-10-19T18:32:21Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:13:58.199856Z"}],"nvd":[{"id":"CVE-2026-12665","description":"IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.","status":"published","published":"2026-10-19T17:17:18.773Z","modified":"2026-10-23T17:21:42.577Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:13:00.83844Z"}]}}