CVE-2021-34980: netgear r6260 firmware

csirt@kutim:~/threat-intel/cve/CVE-2021-34980

CVSS 8.8 · High EPSS 1,4%

Kerentanan Stack-based Buffer Overflow pada netgear r6260 firmware. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. When parsing the SOAP_LOGIN_TOKEN environment variable, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14107.

Rincian

Terbit di NVD: 13 Januari 2022
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 8.8 (High), sumber NVD
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-121: Stack-based Buffer Overflow
CWE-787: Out-of-bounds Write
EPSS (30 hari): 1,4% peluang dieksploitasi; lebih tinggi dari 71,2% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
netgear	r6260 firmware	Versi 1.1.0.78_1.0.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://kb.netgear.com/000064262/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-... advisory vendor
https://www.zerodayinitiative.com/advisories/ZDI-21-1242/ advisory pihak ketiga · vdb entry

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.