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Vulnerability record · CVE-2022-20759 · published 3 May 2022

CVE-2022-20759: Cisco secure firewall threat defense improper privilege management vulnerability

Cisco · Secure Firewall Threat Defense

A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, but unprivileged, remote attacker to elevate privileges to level 15. This vulnerability is due to improper separation of authentication and authorization scopes. An attacker could exploit this vulnerability by sending crafted HTTPS messages to the web services interface of an affected device. A successful exploit could allow the attacker to gain privilege level 15 access to the web management interface of the device. This includes privilege level 15 access to the device using management tools like the Cisco Adaptive Security Device Manager (ASDM) or the Cisco Security Manager (CSM). Note: With Cisco FTD Software, the impact is lower than the CVSS score suggests because the affected web management interface allows for read access only.

8.8 CVSS 3.1 High EPSS 28% · top 1.9% CWE-266 · CWE-266CWE-269 · Improper privilege management
8.8CVSS 3.1 base score, v2 8.5
28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References, 2 tagged exploit
11 Aug 2026Last modified by NVD

Description

A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, but unprivileged, remote attacker to elevate privileges to level 15. This vulnerability is due to improper separation of authentication and authorization scopes. An attacker could exploit this vulnerability by sending crafted HTTPS messages to the web services interface of an affected device. A successful exploit could allow the attacker to gain privilege level 15 access to the web management interface of the device. This includes privilege level 15 access to the device using management tools like the Cisco Adaptive Security Device Manager (ASDM) or the Cisco Security Manager (CSM). Note: With Cisco FTD Software, the impact is lower than the CVSS score suggests because the affected web management interface allows for read access only.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2021-44228Apache Log4j2 JNDI lookup remote code executionApache Log4j2 versions 2.0-beta9 through 2.15.0 (excluding 2.12.2, 2.12.3, and 2.3.1) do not protect against attacker-controlled LDAP and other JNDI …KEVEPSS 100%analysed9.9CVE-2025-20333Cisco ASA and FTD VPN web server buffer overflow allows root RCECisco Secure Firewall ASA and FTD Software fail to properly validate user-supplied input in HTTP(S) requests to the VPN web server, causing a classic…KEVEPSS 71%analysed9.1CVE-2023-20269Cisco ASA and FTD remote access VPN AAA separation flawCisco ASA and FTD remote access VPN features fail to properly separate AAA from the HTTPS management and site-to-site VPN features. An attacker can s…KEVEPSS 25%analysed8.8CVE-2016-6366Cisco ASA SNMP buffer overflow allows remote code executionCisco ASA, PIX and FWSM software through 9.4.2.3 contains a classic buffer overflow (CWE-120) reachable through crafted IPv4 SNMP packets. A remote a…KEVEPSS 88%analysed8.6CVE-2026-20349Cisco ASA and FTD SSL VPN HTTP request handling denial of serviceCisco Secure Firewall ASA and FTD software fail to properly check errors when processing HTTP requests in the Remote Access SSL VPN service. An unaut…KEVEPSS 1.0%analysed8.6CVE-2025-20362Cisco Secure Firewall ASA/FTD VPN web server missing authorizationThe VPN web server in Cisco Secure Firewall ASA and FTD software fails to properly validate user-supplied input in HTTP(S) requests, allowing access …KEVEPSS 87%analysed8.6CVE-2024-20353Cisco ASA and FTD web server HTTP header parsing DoSCisco ASA and FTD management and VPN web servers fail to fully check errors when parsing an HTTP header, so a crafted request can crash and reload th…KEVEPSS 71%analysed7.8CVE-2016-6367Cisco ASA CLI command injection privilege escalationCisco ASA Software before 8.4(1) on ASA 5500, ASA 5500-X, PIX, and FWSM devices mishandles invalid CLI commands, allowing command injection (CWE-77).…KEVEPSS 23%analysed

Source: NIST National Vulnerability Database (record CVE-2022-20759), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.