{"id":"CVE-2026-6730","title":"IBM Concert 1.0.0 through 3.0.0 is vulnerable to a buffer overflow, caused by improper bounds checking","summary":"IBM Concert 1.0.0 through 3.0.0 is vulnerable to a buffer overflow, caused by improper bounds checking. A local user could overflow the buffer and execute arbitrary code on the system.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-120"],"vendor":"ibm","product":"concert","affected":["concert >= 1.0.0, <= 3.0.0"],"published":"2026-09-23","updated":"2026-09-28","sourceUpdated":"2026-09-28T20:47:20.347","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-6730","references":[{"url":"https://www.ibm.com/support/pages/node/7288830","label":"psirt@us.ibm.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-24T13:48:43.000788Z"},"ingestedAt":"2026-09-23T21:33:13.533Z","epss":0.0031,"epssPercentile":0.23683,"slug":"CVE-2026-6730","body":"## Overview\n\nIBM Concert 1.0.0 through 3.0.0 is vulnerable to a buffer overflow, caused by improper bounds checking. A local user could overflow the buffer and execute arbitrary code on the system.\n\n## Affected\n\n- `concert >= 1.0.0, <= 3.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}