CVE-2026-51537: opener project opener

csirt@kutim:~/threat-intel/cve/CVE-2026-51537

CVSS 9.1 · Critical EPSS 0,65%

Kerentanan Out-of-bounds Read pada opener project opener. Skor CVSS 3.1 9.1 (Critical) menurut CISA ADP.

Deskripsi (NVD)

EIPStackGroup OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in Connection Manager handling of ForwardOpen requests when processing short malformed packets. An attacker can send a valid ENIP outer frame carrying a malformed CIP ForwardOpen/LargeForwardOpen request, causing the parser to continue reading fields even when request data is insufficient. This issue is remotely triggerable via network traffic and does not require authentication.

Rincian

Terbit di NVD: 13 Juli 2026
Terakhir diubah: 11 Agustus 2026
Status NVD: Analyzed
CVSS 3.1: 9.1 (Critical), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-125: Out-of-bounds Read
EPSS (30 hari): 0,65% peluang dieksploitasi; lebih tinggi dari 49,7% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
opener project	opener	Versi 2.3.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/EIPStackGroup/OpENer/issues/564 exploit · issue tracking · advisory vendor
https://gist.github.com/MrAlaskan/a5fb0fb7765c9df80d28220ed558f04e advisory pihak ketiga

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.