{"id":"CVE-2020-25844","aliases":["EUVD-2020-18477","GHSA-j59v-276v-qwjv"],"status":"published","title":"CHANGING Inc. NHIServiSignAdapter Windows Versions - Stack Overflow","description":"The digest generation function of NHIServiSignAdapter has not been verified for parameter’s length, which leads to a stack overflow loophole. Remote attackers can use the leak to execute code without privilege.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01978,"percentile":0.80656,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2020-12-31T07:45:46Z","modified":"2026-06-17T03:07:22Z","products":[{"vendor":"changing inc.","product":"nhiservisignadapter"},{"vendor":"panorama","product":"nhiservisignadapter"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-4272-23ba4-1.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25844"},{"url":"https://github.com/advisories/GHSA-j59v-276v-qwjv"}],"sources":{"cve":[{"id":"CVE-2020-25844","title":"CHANGING Inc. NHIServiSignAdapter Windows Versions - Stack Overflow","description":"The digest generation function of NHIServiSignAdapter has not been verified for parameter’s length, which leads to a stack overflow loophole. Remote attackers can use the leak to execute code without privilege.","status":"published","published":"2020-12-31T07:45:46.812Z","modified":"2024-09-16T16:53:50.623Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:35:48.854892Z"}],"euvd":[{"id":"EUVD-2020-18477","description":"The digest generation function of NHIServiSignAdapter has not been verified for parameter’s length, which leads to a stack overflow loophole. Remote attackers can use the leak to execute code without privilege.","status":"published","published":"2020-12-31T07:45:46Z","modified":"2024-09-16T16:53:50Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:55:47.18954Z"}],"ghsa":[{"id":"GHSA-j59v-276v-qwjv","title":"The digest generation function of NHIServiSignAdapter has not been verified for parameter’s...","description":"The digest generation function of NHIServiSignAdapter has not been verified for parameter’s length, which leads to a stack overflow loophole. Remote attackers can use the leak to execute code without privilege.","status":"published","published":"2022-05-24T22:28:44Z","modified":"2023-01-30T05:05:53Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:47:22.488805Z"}],"nvd":[{"id":"CVE-2020-25844","description":"The digest generation function of NHIServiSignAdapter has not been verified for parameter’s length, which leads to a stack overflow loophole. Remote attackers can use the leak to execute code without privilege.","status":"published","published":"2020-12-31T08:15:13.237Z","modified":"2026-06-17T03:07:22.87Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"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-121","CWE-787"],"updated_at":"2026-11-02T14:06:28.340168Z"}]}}