CVE-2026-73673 — Katalog CVE

csirt@kutim:~/threat-intel/cve/CVE-2026-73673

CVSS 8.8 · High EPSS 0,54%

Kerentanan Missing Authentication for Critical Function. Skor CVSS 3.1 8.8 (High) menurut vulncheck.com.

Deskripsi (NVD)

Netis NC63 router firmware V3.0.0.3327 contains an unauthenticated firmware update vulnerability that allows unauthenticated attackers to submit unsigned firmware images by exploiting a missing authentication enforcement flaw in the Boa web server and netis.cgi CGI dispatcher. Attackers can send a multipart POST request to /cgi-bin/upload_fw.cgi without a valid session cookie, bypassing authentication because Boa grants access to any path containing '.cgi' regardless of cookie validation, and netis.cgi reads but does not enforce the authentication state before invoking the firmware update handler, which accepts images validated only by a forgeable additive checksum and static product strings rather than a cryptographic signature, potentially enabling persistent router compromise.

Rincian

Terbit di NVD: 14 Agustus 2026
Terakhir diubah: 24 September 2026
Status NVD: Deferred
CVSS 3.1: 8.8 (High), sumber vulncheck.com
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-306: Missing Authentication for Critical Function
EPSS (30 hari): 0,54% peluang dieksploitasi; lebih tinggi dari 44,0% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.