CVE-2021-25664

Katalog CVE

CVSS 7.5 · High EPSS 1,9%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada siemens capital vstar, siemens nucleus net +3 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values.

Rincian

Terbit di NVD

22 April 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

EPSS (30 hari)

1,9% peluang dieksploitasi; lebih tinggi dari 78,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf advisory vendor
• https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05 advisory pihak ketiga · pemerintah AS
• https://cert-portal.siemens.com/productcert/html/ssa-248289.html