{"id":"CVE-2021-41830","aliases":["EUVD-2021-28831","GHSA-7qhr-g3xw-3692"],"status":"published","title":"Double Certificate Attack","description":"It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25633 for the LibreOffice advisory.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0139,"percentile":0.72546,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2021-10-11T08:10:12Z","modified":"2026-06-17T04:08:58Z","products":[{"vendor":"apache","product":"openoffice"},{"vendor":"apache software foundation","product":"apache openoffice"}],"references":[{"url":"https://lists.apache.org/thread.html/r97d287c88881aa581f1b18cb01e2cbedc4e6eae85958491acb89b12e%40%3Cusers.openoffice.apache.org%3E","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory"]},{"url":"https://lists.apache.org/thread.html/raaab8a3b91f8d7b7ba14f873b8d0fd13952c823acc3385b7a374e754%40%3Cannounce.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41830"},{"url":"https://lists.apache.org/thread.html/raaab8a3b91f8d7b7ba14f873b8d0fd13952c823acc3385b7a374e754@%3Cannounce.apache.org%3E"},{"url":"https://github.com/advisories/GHSA-7qhr-g3xw-3692"}],"sources":{"cve":[{"id":"CVE-2021-41830","title":"Double Certificate Attack","description":"It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25633 for the LibreOffice advisory.","status":"published","published":"2021-10-11T08:10:12Z","modified":"2024-08-04T03:22:24.927Z","cwes":["CWE-347"],"updated_at":"2026-11-02T14:32:59.105382Z"}],"euvd":[{"id":"EUVD-2021-28831","description":"It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25633 for the LibreOffice advisory.","status":"published","published":"2021-10-11T08:10:12Z","modified":"2024-08-04T03:22:24Z","updated_at":"2026-11-03T03:24:17.230256Z"}],"ghsa":[{"id":"GHSA-7qhr-g3xw-3692","title":"It is possible for an attacker to manipulate signed documents and macros to appear to come from a...","description":"It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25633 for the LibreOffice advisory.","status":"published","published":"2022-05-24T19:17:14Z","modified":"2023-01-30T05:02:45Z","cwes":["CWE-347"],"updated_at":"2026-11-02T14:46:42.642348Z"}],"nvd":[{"id":"CVE-2021-41830","description":"It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25633 for the LibreOffice advisory.","status":"published","published":"2021-10-11T08:15:06.897Z","modified":"2026-06-17T04:08:58.74Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:06:59.689345Z"}]}}