{"id":"CVE-2021-20494","aliases":["EUVD-2021-7912","GHSA-gwjh-r2ww-fpmp"],"status":"published","title":"IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow...","description":"IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/I:N/C:N/AC:L/AV:N/UI:N/A:H/PR:L/S:U/E:U/RC:C/RL:O","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01132,"percentile":0.66714,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-06-28T16:10:19Z","modified":"2026-06-17T03:33:55Z","products":[{"vendor":"ibm","product":"security identity manager adapters"},{"vendor":"ibm","product":"security_identity_manager_adapter"}],"references":[{"url":"https://www.ibm.com/support/pages/node/6465875","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/197882","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20494"},{"url":"https://github.com/advisories/GHSA-gwjh-r2ww-fpmp"}],"sources":{"cve":[{"id":"CVE-2021-20494","description":"IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.","status":"published","published":"2021-06-28T16:10:19.26Z","modified":"2024-09-17T02:47:00.739Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/I:N/C:N/AC:L/AV:N/UI:N/A:H/PR:L/S:U/E:U/RC:C/RL:O","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-7912","description":"IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.","status":"published","published":"2021-06-28T16:10:19Z","modified":"2024-09-17T02:47:00Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/I:N/C:N/AC:L/AV:N/UI:N/A:H/PR:L/S:U/E:U/RC:C/RL:O","level":"medium"}],"updated_at":"2026-11-03T00:28:37.375568Z"}],"ghsa":[{"id":"GHSA-gwjh-r2ww-fpmp","title":"IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow...","description":"IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.","status":"published","published":"2022-05-24T19:06:23Z","modified":"2023-01-30T05:00:32Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:13.539888Z"}],"nvd":[{"id":"CVE-2021-20494","description":"IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.","status":"published","published":"2021-06-28T16:15:08.14Z","modified":"2026-06-17T03:33:55.623Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:55.259633Z"}]}}