CVE-2021-26731: lannerinc iac-ast2500a firmware

csirt@kutim:~/threat-intel/cve/CVE-2021-26731

CVSS 9.8 · Critical EPSS 2,4%

Kerentanan Improper Control of Generation of Code ('Code Injection') pada lannerinc iac-ast2500a firmware. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_func function of spx_restservice allow an authenticated attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Rincian

Terbit di NVD: 24 Oktober 2022
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-94: Improper Control of Generation of Code ('Code Injection')
CWE-121: Stack-based Buffer Overflow
CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-787: Out-of-bounds Write
EPSS (30 hari): 2,4% peluang dieksploitasi; lebih tinggi dari 83,7% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
lannerinc	iac-ast2500a firmware	Versi 1.10.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/ advisory pihak ketiga
https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26731/ advisory pihak ketiga

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.