csirt@kutim:~/threat-intel/cve/CVE-2023-20083

Katalog CVE

CVSS 8.6 · High EPSS 0,70%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada cisco secure firewall threat defense. Skor CVSS 3.1 8.6 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result in a denial of service (DoS) condition. FTD management traffic is not affected by this vulnerability. This vulnerability is due to improper error checking when parsing fields within the ICMPv6 header. An attacker could exploit this vulnerability by sending a crafted ICMPv6 packet through an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition. Note: To recover from the DoS condition, the Snort 2 Detection Engine or the Cisco FTD device may need to be restarted.

Rincian

Terbit di NVD
1 November 2023
Terakhir diubah
11 Agustus 2026
Status NVD
Modified
CVSS 3.1
8.6 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
EPSS (30 hari)
0,70% peluang dieksploitasi; lebih tinggi dari 51,8% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco secure firewall threat defense Versi 6.2.3 hingga 6.2.3.18
cisco secure firewall threat defense Versi 6.4.0 hingga 6.4.0.17
cisco secure firewall threat defense Versi 6.6.0 hingga 6.6.7.1
cisco secure firewall threat defense Versi 6.7.0 hingga 6.7.0.3
cisco secure firewall threat defense Versi 7.0.0 hingga 7.0.5
cisco secure firewall threat defense Versi 7.1.0 hingga 7.1.0.3
cisco secure firewall threat defense Versi 7.2.0 hingga 7.2.3
cisco secure firewall threat defense Versi 7.3.0 hingga 7.3.1.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

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.