CVE-2024-20359

medium Cisco ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
6.0
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
EPSS Score
19.4%
Exploitation probability in 30 days
Top 3% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Published: April 24, 2024 (865 days ago)
Last Modified: August 11, 2026
Vendor: Cisco
Source: NVD

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2024-04-24
Remediation Due: 2024-05-01 (⚠ 858d overdue)

Description

A vulnerability in a legacy capability that allowed for the preloading of VPN clients and plug-ins and that has been available in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary code with root-level privileges. Administrator-level privileges are required to exploit this vulnerability. This vulnerability is due to improper validation of a file when it is read from system flash memory. An attacker could exploit this vulnerability by copying a crafted file to the disk0: file system of an affected device. A successful exploit could allow the attacker to execute arbitrary code on the affected device after the next reload of the device, which could alter system behavior. Because the injected code could persist across device reboots, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.

CWE

CWE-94

Affected Products

cisco adaptive security appliance softwarecisco secure firewall threat defense

References

🔗 sec.cloudapps.cisco.com 🔗 sec.cloudapps.cisco.com 🔗 blog.talosintelligence.com 🔗 www.cisa.gov