{"id":"CVE-2021-28485","aliases":["EUVD-2021-15162","GHSA-r68w-x838-c65m"],"status":"published","title":"Ericsson Mobile Switching Center Server (MSC-S) BC 18A and IS 3.1 releases before IS 3.1 CP22...","description":"In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00662,"percentile":0.51984,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2023-09-14T00:00:00Z","modified":"2026-06-17T03:46:27Z","products":[{"vendor":"ericsson","product":"mobile_switching_center_server_bc_18a_firmware"}],"references":[{"url":"https://www.gruppotim.it/it/footer/red-team.html","tags":["x_transferred","Third Party Advisory"]},{"url":"https://www.ericsson.com/en/about-us/security/psirt","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28485"},{"url":"https://github.com/advisories/GHSA-r68w-x838-c65m"}],"sources":{"cve":[{"id":"CVE-2021-28485","description":"In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application.","status":"published","published":"2023-09-14T00:00:00Z","modified":"2024-09-25T19:56:42.862Z","updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-15162","description":"In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application.","status":"published","published":"2023-09-14T00:00:00Z","modified":"2024-09-25T19:56:42Z","updated_at":"2026-11-03T00:28:10.832665Z"}],"ghsa":[{"id":"GHSA-r68w-x838-c65m","title":"Ericsson Mobile Switching Center Server (MSC-S) BC 18A and IS 3.1 releases before IS 3.1 CP22...","description":"Ericsson Mobile Switching Center Server (MSC-S) BC 18A and IS 3.1 releases before IS 3.1 CP22 allows Directory Traversal.","status":"published","published":"2023-09-14T15:31:23Z","modified":"2024-04-04T07:40:22Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:56:53.773376Z"}],"nvd":[{"id":"CVE-2021-28485","description":"In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application.","status":"published","published":"2023-09-14T15:15:07.827Z","modified":"2026-06-17T03:46:27.053Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}