CVE-2023-20244

תיאור (מקור, אנגלית)

A vulnerability in the internal packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Firewalls could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain packets when they are sent to the inspection engine. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to deplete all 9,472 byte blocks on the device, resulting in traffic loss across the device or an unexpected reload of the device. If the device does not reload on its own, a manual reload of the device would be required to recover from this state.

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-771

מוצרים מושפעים

cisco: secure firewall threat defense; cisco: firepower 2110; cisco: firepower 2120; cisco: firepower 2130; cisco: firepower 2140

קישורים

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/‮… Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/‮… Vendor Advisory