{"id":"CVE-2021-20711","aliases":["EUVD-2021-8126","GHSA-p4fr-76vx-7r7v"],"status":"published","title":"Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands...","description":"Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands via unspecified vectors.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01359,"percentile":0.72063,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2021-04-26T00:20:46Z","modified":"2026-06-17T03:34:18Z","products":[{"vendor":"nec","product":"aterm_wg2600hs_firmware"},{"vendor":"nec corporation","product":"aterm wg2600hs"},{"vendor":"nec platforms, ltd.","product":"aterm wg2600hs"}],"references":[{"url":"https://jpn.nec.com/security-info/secinfo/nv21-010.html","tags":["x_refsource_MISC","x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://jvn.jp/en/jp/JVN29739718/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20711"},{"url":"https://github.com/advisories/GHSA-p4fr-76vx-7r7v"}],"sources":{"cve":[{"id":"CVE-2021-20711","description":"Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands via unspecified vectors.","status":"published","published":"2021-04-26T00:20:46Z","modified":"2024-08-03T17:53:21.236Z","updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-8126","description":"Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands via unspecified vectors.","status":"published","published":"2021-04-26T00:20:46Z","modified":"2024-08-03T17:53:21Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-p4fr-76vx-7r7v","title":"Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands...","description":"Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands via unspecified vectors.","status":"published","published":"2022-05-24T17:48:50Z","modified":"2023-01-29T05:06:30Z","cwes":["CWE-78"],"updated_at":"2026-11-02T14:46:02.46151Z"}],"nvd":[{"id":"CVE-2021-20711","description":"Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands via unspecified vectors.","status":"published","published":"2021-04-26T01:15:08.03Z","modified":"2026-06-17T03:34:18.067Z","cvss":[{"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":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}