{"id":"CVE-2020-5637","aliases":["EUVD-2020-26798","GHSA-446c-h2fq-7hw2"],"status":"published","title":"Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions...","description":"Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00376,"percentile":0.31878,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-354"],"published":"2020-12-14T02:25:52Z","modified":"2026-06-17T03:21:44Z","products":[{"vendor":"nec corporation","product":"aterm sa3500g"},{"vendor":"necplatforms","product":"aterm_sa3500g_firmware"}],"references":[{"url":"https://www.necplatforms.co.jp/product/security_ap/info_20201211.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://jvn.jp/en/jp/JVN55917325/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://jvn.jp/jp/JVN55917325/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-5637"},{"url":"https://github.com/advisories/GHSA-446c-h2fq-7hw2"}],"sources":{"cve":[{"id":"CVE-2020-5637","description":"Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.","status":"published","published":"2020-12-14T02:25:52Z","modified":"2024-08-04T08:39:25.664Z","updated_at":"2026-11-02T14:35:47.877975Z"}],"euvd":[{"id":"EUVD-2020-26798","description":"Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.","status":"published","published":"2020-12-14T02:25:52Z","modified":"2024-08-04T08:39:25Z","updated_at":"2026-11-03T03:08:06.272693Z"}],"ghsa":[{"id":"GHSA-446c-h2fq-7hw2","title":"Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions...","description":"Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.","status":"published","published":"2022-05-24T17:36:21Z","modified":"2023-01-29T05:05:01Z","cwes":["CWE-354"],"updated_at":"2026-11-02T14:45:41.213171Z"}],"nvd":[{"id":"CVE-2020-5637","description":"Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.","status":"published","published":"2020-12-14T03:15:13.543Z","modified":"2026-06-17T03:21:44.08Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":5.2,"vector":"AV:A/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T14:06:27.10541Z"}]}}