{"id":"CVE-2026-81858","aliases":["EUVD-2026-98178","GHSA-wf64-vjxh-jr77"],"status":"published","title":"IBM i is Affected By A Denial of Service Vulnerability in Host Servers","description":"IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of service and obtain information due to an out-of-bounds read in the File Server.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00275,"percentile":0.20153,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-10-12T23:22:27Z","modified":"2026-10-14T23:48:42Z","products":[{"vendor":"ibm","product":"i"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7290195","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81858"},{"url":"https://github.com/advisories/GHSA-wf64-vjxh-jr77"}],"sources":{"cve":[{"id":"CVE-2026-81858","title":"IBM i is Affected By A Denial of Service Vulnerability in Host Servers","description":"IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of service and obtain information due to an out-of-bounds read in the File Server.","status":"published","published":"2026-10-12T23:22:27.442Z","modified":"2026-10-13T13:48:37.584Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T13:36:29.327819Z"}],"euvd":[{"id":"EUVD-2026-98178","description":"IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of service and obtain information due to an out-of-bounds read in the File Server.","status":"published","published":"2026-10-12T23:22:27Z","modified":"2026-10-13T13:48:37Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T17:27:20.758283Z"}],"ghsa":[{"id":"GHSA-wf64-vjxh-jr77","title":"IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of...","description":"IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of service and obtain information due to an out-of-bounds read in the File Server.","status":"published","published":"2026-10-13T00:31:40Z","modified":"2026-10-13T00:31:48Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:13:09.458289Z"}],"nvd":[{"id":"CVE-2026-81858","description":"IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of service and obtain information due to an out-of-bounds read in the File Server.","status":"published","published":"2026-10-13T00:17:01.807Z","modified":"2026-10-14T23:48:42.867Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:56.72789Z"}]}}