csirt@kutim:~/threat-intel/cve/CVE-2022-20943

Katalog CVE

CVSS 5.8 · Medium EPSS 0,95%

Kerentanan Improper Clearing of Heap Memory Before Release ('Heap Inspection') pada cisco secure firewall threat defense, cisco cyber vision +1 lainnya. Skor CVSS 3.1 5.8 (Medium) menurut NVD.

Deskripsi (NVD)

Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition. Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details ["#details"] section of this advisory for more information. Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.

Rincian

Terbit di NVD
15 November 2022
Terakhir diubah
11 Agustus 2026
Status NVD
Modified
CVSS 3.1
5.8 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-244: Improper Clearing of Heap Memory Before Release ('Heap Inspection')
EPSS (30 hari)
0,95% peluang dieksploitasi; lebih tinggi dari 60,2% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco secure firewall threat defense Versi 7.0.0
cisco secure firewall threat defense Versi 7.0.0.1
cisco secure firewall threat defense Versi 7.0.1
cisco secure firewall threat defense Versi 7.0.1.1
cisco cyber vision Versi 3.0.0
cisco cyber vision Versi 3.0.1
cisco cyber vision Versi 3.0.2
cisco cyber vision Versi 3.0.3
cisco cyber vision Versi 3.0.5
cisco cyber vision Versi 3.0.6
cisco cyber vision Versi 3.1.0
cisco cyber vision Versi 3.1.1
cisco cyber vision Versi 3.1.2
cisco cyber vision Versi 3.2.0
cisco cyber vision Versi 3.2.1
cisco cyber vision Versi 3.2.2
cisco cyber vision Versi 3.2.3
cisco cyber vision Versi 3.2.4
cisco cyber vision Versi 4.0.0
cisco cyber vision Versi 4.0.1
cisco cyber vision Versi 4.0.2
cisco cyber vision Versi 4.0.3
cisco cyber vision Versi 4.1.0
cisco cyber vision Versi 4.1.1
cisco meraki mx security appliance firmware Semua versi sebelum 16.6.7
cisco meraki mx security appliance firmware Versi 17.0 hingga sebelum 17.11.1
cisco meraki mx security appliance firmware Versi 18.0 hingga sebelum 18.1.3

> 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.