CVE-2021-40125

תיאור (מקור, אנגלית)

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.

מדדים

CVSS 3.1

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

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-22/10/2026

CWE

CWE-416, CWE-400

מוצרים מושפעים

cisco: secure firewall threat defense; cisco: adaptive security appliance software; cisco: asa 5512-x firmware; cisco: asa 5512-x; cisco: asa 5505 firmware; cisco: asa 5505; cisco: asa 5515-x firmware; cisco: asa 5515-x; cisco: asa 5525-x firmware; cisco: asa 5525-x; cisco: asa 5545-x firmware; cisco: asa 5545-x; cisco: asa 5555-x firmware; cisco: asa 5555-x; cisco: asa 5580 firmware

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