{"id":"CVE-2020-4099","aliases":["EUVD-2020-25346","GHSA-pc4m-vcwh-9c5h"],"status":"published","title":"HCL Verse for Android is susceptible to an APK signing key check vulnerability","description":"The application was signed using a key length less than or equal to 1024 bits, making it potentially vulnerable to forged digital signatures. An attacker could forge the same digital signature of the app after maliciously modifying the app.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00361,"percentile":0.30126,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2022-11-01T17:55:10Z","modified":"2026-06-17T03:19:33Z","products":[{"vendor":"hcl software","product":"hcl verse for android"},{"vendor":"hcltech","product":"verse"}],"references":[{"url":"https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0100861","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-4099"},{"url":"https://github.com/advisories/GHSA-pc4m-vcwh-9c5h"}],"sources":{"cve":[{"id":"CVE-2020-4099","title":"HCL Verse for Android is susceptible to an APK signing key check vulnerability","description":"The application was signed using a key length less than or equal to 1024 bits, making it potentially vulnerable to forged digital signatures. An attacker could forge the same digital signature of the app after maliciously modifying the app.","status":"published","published":"2022-11-01T17:55:10.519Z","modified":"2025-05-02T16:02:40.193Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:35:55.797746Z"}],"euvd":[{"id":"EUVD-2020-25346","description":"The application was signed using a key length less than or equal to 1024 bits, making it potentially vulnerable to forged digital signatures. An attacker could forge the same digital signature of the app after maliciously modifying the app.","status":"published","published":"2022-11-01T17:55:10Z","modified":"2025-05-02T16:02:40Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T20:51:55.85045Z"}],"ghsa":[{"id":"GHSA-pc4m-vcwh-9c5h","title":"The application was signed using a key length less than or equal to 1024 bits, making it...","description":"The application was signed using a key length less than or equal to 1024 bits, making it potentially vulnerable to forged digital signatures.  An attacker could forge the same digital signature of the app after maliciously modifying the app.","status":"published","published":"2022-11-01T19:00:28Z","modified":"2023-02-01T05:04:27Z","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"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:50:09.415947Z"}],"nvd":[{"id":"CVE-2020-4099","description":"The application was signed using a key length less than or equal to 1024 bits, making it potentially vulnerable to forged digital signatures. An attacker could forge the same digital signature of the app after maliciously modifying the app.","status":"published","published":"2022-11-01T18:15:10.793Z","modified":"2026-06-17T03:19:33.04Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"},{"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"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:06:47.286386Z"}]}}