CVE-2021-34783

cisco secure firewall threat defense, cisco adaptive security appliance software, cisco asa 5512-x firmware +7 lainnya

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2021-34783

Katalog CVE

CVSS 7.5 · High EPSS 1,6%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada cisco secure firewall threat defense, cisco adaptive security appliance software +8 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL/TLS decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: Datagram TLS (DTLS) messages cannot be used to exploit this vulnerability.

Rincian

Terbit di NVD
27 Oktober 2021
Terakhir diubah
11 Agustus 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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-20: Improper Input Validation
EPSS (30 hari)
1,6% peluang dieksploitasi; lebih tinggi dari 75,3% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco secure firewall threat defense Versi 6.4.0 hingga sebelum 6.4.0.13
cisco secure firewall threat defense Versi 6.6.0 hingga sebelum 6.6.5
cisco secure firewall threat defense Versi 6.7.0 hingga sebelum 6.7.0.3
cisco secure firewall threat defense Versi 7.0.0 hingga sebelum 7.0.1
cisco adaptive security appliance software Versi 9.8.0 hingga sebelum 9.8.4.40
cisco adaptive security appliance software Versi 9.12.0 hingga sebelum 9.12.4.29
cisco adaptive security appliance software Versi 9.14.0 hingga sebelum 9.14.3.9
cisco adaptive security appliance software Versi 9.15.0 hingga sebelum 9.15.1.17
cisco adaptive security appliance software Versi 9.16.0 hingga sebelum 9.16.2
cisco asa 5512-x firmware Versi 009.016(001)
cisco asa 5512-x firmware Versi 009.016(001.025)
cisco asa 5505 firmware Versi 009.016(001)
cisco asa 5505 firmware Versi 009.016(001.025)
cisco asa 5515-x firmware Versi 009.016(001)
cisco asa 5515-x firmware Versi 009.016(001.025)
cisco asa 5525-x firmware Versi 009.016(001)
cisco asa 5525-x firmware Versi 009.016(001.025)
cisco asa 5545-x firmware Versi 009.016(001)
cisco asa 5545-x firmware Versi 009.016(001.025)
cisco asa 5555-x firmware Versi 009.016(001)
cisco asa 5555-x firmware Versi 009.016(001.025)
cisco asa 5580 firmware Versi 009.016(001)
cisco asa 5580 firmware Versi 009.016(001.025)
cisco asa 5585-x firmware Versi 009.016(001)
cisco asa 5585-x firmware Versi 009.016(001.025)

> 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.