CVE-2021-1402

תיאור (מקור, אנגלית)

A vulnerability in the software-based SSL/TLS message handler of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message through an affected device. SSL/TLS messages sent to an affected device do not trigger this vulnerability. A successful exploit could allow the attacker to cause a process to crash. This crash would then trigger a reload of the device. No manual intervention is needed to recover the device after the reload.

מדדים

CVSS 3.1

8.6 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-8/10/2026

CWE

CWE-119, CWE-20

מוצרים מושפעים

cisco: secure firewall threat defense; cisco: firepower threat defense virtual; cisco: asa 5512-x; cisco: asa 5515-x; cisco: asa 5525-x; cisco: asa 5545-x; cisco: asa 5555-x; cisco: firepower 1010; cisco: firepower 1120; cisco: firepower 1140; cisco: firepower 1150; cisco: firepower 2110; cisco: firepower 2120; cisco: firepower 2130; cisco: firepower 2140

קישורים

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa‮… Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa‮… Vendor Advisory