CVE-2026-20062 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
An authenticated local attacker with admin privileges in one context can read or overwrite sensitive files in other contexts via SCP.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20062?
CVE-2026-20062 is a high-severity missing authorization vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, published on 4 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the CLI of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software in multiple context mode could allow an authenticated, local attacker with administrative privileges in one context to copy files to or from another context, including configuration files. This vulnerability is due to improper access controls for Secure Copy Protocol (SCP) operations when the CiscoSSH stack is enabled. An attacker could exploit this vulnerability by authenticating to a non-admin context of the device and issuing crafted SCP copy commands in that non-admin context. A successful exploit could allow the attacker to read, create, or overwrite sensitive files that belong to another context, including the admin and system contexts. The attacker cannot directly impact the availability of services pertaining to other contexts. To exploit this vulnerability, the attacker must have valid administrative credentials for a non-admin context. Note: An attacker cannot list or enumerate files from another context and would need to know the exact file path, which increases the complexity of a successful attack.
Weakness: CWE-279
Which versions are affected by CVE-2026-20062?
How do I fix CVE-2026-20062?
No fix has been published for CVE-2026-20062 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-20062 being exploited?
There is no known exploitation of CVE-2026-20062 in the wild and no public exploit code.
Sources
Also known as GHSA-9hgq-rrv7-j79j.