CVE-2020-5821 Code injection in Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE)

High 7.8 Published 11 Feb 2020 Updated 4 Aug 2024

Attackers can execute arbitrary code via DLL injection in Symantec Endpoint Protection, potentially gaining elevated 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-2020-5821?

CVE-2020-5821 is a high-severity code injection vulnerability in Symantec Endpoint Protection, published on 11 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a DLL injection vulnerability, which is a type of issue whereby an individual attempts to execute their own code in place of legitimate code as a means to perform an exploit.

Weakness: CWE-427

Which versions are affected by CVE-2020-5821?

It affects 1 product.

Products include Symantec Endpoint Protection.

How do I fix CVE-2020-5821?

No fix has been published for CVE-2020-5821 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-5821 being exploited?

There is no known exploitation of CVE-2020-5821 in the wild and no public exploit code.

All Symantec Endpoint Protection vulnerabilities

Sources

Also known as GHSA-9v2m-whxm-wgp7.