{"id":"CVE-2020-4462","aliases":["EUVD-2020-25709","GHSA-4p7q-hvhp-3r8p"],"status":"published","title":"IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling...","description":"IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 181482.","severity":{"version":"3.0","score":8.2,"vector":"CVSS:3.0/S:U/AC:L/I:N/A:L/C:H/UI:N/PR:N/AV:N/RC:C/E:U/RL:O","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.03249,"percentile":0.88432,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-611"],"published":"2020-07-16T15:05:35Z","modified":"2026-06-17T03:20:00Z","products":[{"vendor":"ibm","product":"external authentication server"},{"vendor":"ibm","product":"sterling external authentication server"},{"vendor":"ibm","product":"sterling secure proxy"},{"vendor":"ibm","product":"sterling_external_authentication_server"},{"vendor":"ibm","product":"sterling_secure_proxy"}],"references":[{"url":"https://www.ibm.com/support/pages/node/6249331","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://www.ibm.com/support/pages/node/6249317","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/181482","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-4462"},{"url":"https://github.com/advisories/GHSA-4p7q-hvhp-3r8p"}],"sources":{"cve":[{"id":"CVE-2020-4462","description":"IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 181482.","status":"published","published":"2020-07-16T15:05:35.729Z","modified":"2024-09-16T16:53:09.458Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/S:U/AC:L/I:N/A:L/C:H/UI:N/PR:N/AV:N/RC:C/E:U/RL:O","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:56.213477Z"}],"euvd":[{"id":"EUVD-2020-25709","description":"IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 181482.","status":"published","published":"2020-07-16T15:05:35Z","modified":"2024-09-16T16:53:09Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/S:U/AC:L/I:N/A:L/C:H/UI:N/PR:N/AV:N/RC:C/E:U/RL:O","level":"high"}],"updated_at":"2026-11-03T00:55:47.18954Z"}],"ghsa":[{"id":"GHSA-4p7q-hvhp-3r8p","title":"IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling...","description":"IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 181482.","status":"published","published":"2022-05-24T17:23:48Z","modified":"2023-01-29T05:03:32Z","updated_at":"2026-11-02T14:45:20.476531Z"}],"nvd":[{"id":"CVE-2020-4462","description":"IBM Sterling External Authentication Server 6.0.1, 6.0.0, 2.4.3.2, and 2.4.2 and IBM Sterling Secure Proxy 6.0.1, 6.0.0, 3.4.3, and 3.4.2 are vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 181482.","status":"published","published":"2020-07-16T15:15:28.08Z","modified":"2026-06-17T03:20:00.73Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","level":"high","assessor":"primary"},{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","level":"high","assessor":"secondary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:06:10.086163Z"}]}}