{"id":"CVE-2021-20546","aliases":["EUVD-2021-7964","GHSA-x4wg-5xxw-qhh7"],"status":"published","title":"IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer...","description":"IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the application to crash. IBM X-Force ID: 198934","severity":{"version":"3.0","score":6.2,"vector":"CVSS:3.0/A:H/S:U/I:N/UI:N/AV:L/AC:L/C:N/PR:N/RL:O/RC:C/E:U","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00266,"percentile":0.18726,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-04-26T16:30:44Z","modified":"2026-06-17T03:34:00Z","products":[{"vendor":"ibm","product":"spectrum protect for space management"},{"vendor":"ibm","product":"spectrum_protect_client"},{"vendor":"ibm","product":"spectrum_protect_for_space_management"}],"references":[{"url":"https://www.ibm.com/support/pages/node/6445497","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/198934","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20546"},{"url":"https://github.com/advisories/GHSA-x4wg-5xxw-qhh7"}],"sources":{"cve":[{"id":"CVE-2021-20546","description":"IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the application to crash. IBM X-Force ID: 198934","status":"published","published":"2021-04-26T16:30:44.99Z","modified":"2024-09-16T19:19:34.477Z","cvss":[{"version":"3.0","score":6.2,"vector":"CVSS:3.0/A:H/S:U/I:N/UI:N/AV:L/AC:L/C:N/PR:N/RL:O/RC:C/E:U","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-7964","description":"IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the application to crash. IBM X-Force ID: 198934","status":"published","published":"2021-04-26T16:30:44Z","modified":"2024-09-16T19:19:34Z","cvss":[{"version":"3.0","score":6.2,"vector":"CVSS:3.0/A:H/S:U/I:N/UI:N/AV:L/AC:L/C:N/PR:N/RL:O/RC:C/E:U","level":"medium"}],"updated_at":"2026-11-03T00:55:24.213258Z"}],"ghsa":[{"id":"GHSA-x4wg-5xxw-qhh7","title":"IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer...","description":"IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the application to crash. IBM X-Force ID: 198934","status":"published","published":"2022-05-24T17:48:53Z","modified":"2023-01-29T05:06:05Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:56.584389Z"}],"nvd":[{"id":"CVE-2021-20546","description":"IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the application to crash. IBM X-Force ID: 198934","status":"published","published":"2021-04-26T17:15:08.043Z","modified":"2026-06-17T03:34:00.087Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.0","score":6.2,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}