CVE-2021-1496 Cisco AnyConnect Secure Mobility Client for Windows DLL and Executable Hijacking Vulnerabilities
Local attackers with valid credentials can hijack DLLs or executables during installation or upgrade to execute arbitrary code with SYSTEM privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-1496?
CVE-2021-1496 is a high-severity vulnerability in Cisco Anyconnect Secure Mobility Client, published on 6 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Multiple vulnerabilities in the install, uninstall, and upgrade processes of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to hijack DLL or executable files that are used by the application. A successful exploit could allow the attacker to execute arbitrary code on an affected device with SYSTEM privileges. To exploit these vulnerabilities, the attacker must have valid credentials on the Windows system. For more information about these vulnerabilities, see the Details section of this advisory.
Which versions are affected by CVE-2021-1496?
It affects 1 product.
Products include Cisco Anyconnect Secure Mobility Client.
How do I fix CVE-2021-1496?
No fix has been published for CVE-2021-1496 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-1496 being exploited?
There is no known exploitation of CVE-2021-1496 in the wild and no public exploit code.
Other vulnerabilities in Cisco Anyconnect Secure Mobility Client
Sources
Also known as GHSA-gfc5-fm98-fg6j.