CVE-2021-1422

תיאור (מקור, אנגלית)

A vulnerability in the software cryptography module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker or an unauthenticated attacker in a man-in-the-middle position to cause an unexpected reload of the device that results in a denial of service (DoS) condition. The vulnerability is due to a logic error in how the software cryptography module handles specific types of decryption errors. An attacker could exploit this vulnerability by sending malicious packets over an established IPsec connection. A successful exploit could cause the device to crash, forcing it to reload. Important: Successful exploitation of this vulnerability would not cause a compromise of any encrypted data. Note: This vulnerability affects only Cisco ASA Software Release 9.16.1 and Cisco FTD Software Release 7.0.0.

מדדים

CVSS 3.1

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

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-30/9/2026

CWE

CWE-617

מוצרים מושפעים

cisco: secure firewall threat defense; cisco: adaptive security appliance software; cisco: adaptive security virtual appliance; cisco: firepower 2100; cisco: firepower 2110; cisco: firepower 2120; cisco: firepower 2130; cisco: firepower 2140; cisco: ftd virtual

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