{"id":"CVE-2020-27583","aliases":["EUVD-2020-20091","GHSA-wffw-394c-6775"],"status":"published","title":"** UNSUPPORTED WHEN ASSIGNED ** IBM InfoSphere Information Server 8.5.0.0 is affected by...","description":"IBM InfoSphere Information Server 8.5.0.0 is affected by deserialization of untrusted data which could allow remote unauthenticated attackers to execute arbitrary code. NOTE: This vulnerability only affects products that are no longer supported by the maintainer","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03853,"percentile":0.90238,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2021-01-21T00:00:40Z","modified":"2026-06-17T03:09:19Z","products":[{"vendor":"ibm","product":"infosphere_information_server"}],"references":[{"url":"https://n4nj0.github.io/advisories/ibm-infosphere-java-deserialization/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27583"},{"url":"https://n4nj0.github.io/advisories/ibm-infosphere-java-deserialization"},{"url":"https://github.com/advisories/GHSA-wffw-394c-6775"}],"sources":{"cve":[{"id":"CVE-2020-27583","description":"IBM InfoSphere Information Server 8.5.0.0 is affected by deserialization of untrusted data which could allow remote unauthenticated attackers to execute arbitrary code. NOTE: This vulnerability only affects products that are no longer supported by the maintainer","status":"published","published":"2021-01-21T00:00:40Z","modified":"2024-08-04T16:18:45.497Z","updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20091","description":"IBM InfoSphere Information Server 8.5.0.0 is affected by deserialization of untrusted data which could allow remote unauthenticated attackers to execute arbitrary code. NOTE: This vulnerability only affects products that are no longer supported by the maintainer","status":"published","published":"2021-01-21T00:00:40Z","modified":"2024-08-04T16:18:45Z","updated_at":"2026-11-03T03:07:12.435876Z"}],"ghsa":[{"id":"GHSA-wffw-394c-6775","title":"** UNSUPPORTED WHEN ASSIGNED ** IBM InfoSphere Information Server 8.5.0.0 is affected by...","description":"** UNSUPPORTED WHEN ASSIGNED ** IBM InfoSphere Information Server 8.5.0.0 is affected by deserialization of untrusted data which could allow remote unauthenticated attackers to execute arbitrary code. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.","status":"published","published":"2022-05-24T17:40:12Z","modified":"2024-03-30T05:01:50Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:55:45.740984Z"}],"nvd":[{"id":"CVE-2020-27583","description":"IBM InfoSphere Information Server 8.5.0.0 is affected by deserialization of untrusted data which could allow remote unauthenticated attackers to execute arbitrary code. NOTE: This vulnerability only affects products that are no longer supported by the maintainer","status":"published","published":"2021-01-26T18:15:46.303Z","modified":"2026-06-17T03:09:19.333Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:06:30.596418Z"}]}}