CVE-2021-39509

Katalog CVE

CVSS 9.8 · Critical EPSS 5,1%

Kerentanan Improper Neutralization of Special Elements used in a Command ('Command Injection') pada dlink dir-816 firmware. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

An issue was discovered in D-Link DIR-816 DIR-816A2_FWv1.10CNB05_R1B011D88210 The HTTP request parameter is used in the handler function of /goform/form2userconfig.cgi route, which can construct the user name string to delete the user function. This can lead to command injection through shell metacharacters.

Rincian

Terbit di NVD

24 Agustus 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

EPSS (30 hari)

5,1% peluang dieksploitasi; lebih tinggi dari 92,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.dlink.com/en/security-bulletin/ advisory vendor
• https://github.com/doudoudedi/main-DIR-816_A2_Command-injection advisory pihak ketiga
• https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.md exploit · advisory pihak ketiga