csirt@kutim:~/threat-intel/cve/CVE-2026-20039

Katalog CVE

CVSS 8.6 · High EPSS 0,37%

Kerentanan Improper Clearing of Heap Memory Before Release ('Heap Inspection') pada cisco adaptive security appliance software, cisco secure firewall threat defense. Skor CVSS 3.1 8.6 (High) menurut cisco.com.

Deskripsi (NVD)

A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to ineffective memory management of the VPN web server. An attacker could exploit this vulnerability by sending a large number of crafted HTTP requests to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Rincian

Terbit di NVD
4 Maret 2026
Terakhir diubah
11 Agustus 2026
Status NVD
Analyzed
CVSS 3.1
8.6 (High), sumber cisco.com
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-244: Improper Clearing of Heap Memory Before Release ('Heap Inspection')
EPSS (30 hari)
0,37% peluang dieksploitasi; lebih tinggi dari 28,4% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco adaptive security appliance software Versi 9.12.1 hingga sebelum 9.16.4.84
cisco adaptive security appliance software Versi 9.17.1 hingga sebelum 9.18.4.57
cisco adaptive security appliance software Versi 9.19.1 hingga sebelum 9.20.3.16
cisco adaptive security appliance software Versi 9.22.1.1 hingga sebelum 9.22.2.4
cisco adaptive security appliance software Versi 9.23.1 hingga sebelum 9.23.1.3
cisco secure firewall threat defense Versi 6.4.0 hingga sebelum 7.0.9
cisco secure firewall threat defense Versi 7.1.0 hingga sebelum 7.2.10
cisco secure firewall threat defense Versi 7.3.0 hingga sebelum 7.4.3
cisco secure firewall threat defense Versi 7.6.0 hingga sebelum 7.6.1
cisco secure firewall threat defense Versi 7.7.0 hingga sebelum 7.7.10

> 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, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.