#VU50730 NULL pointer dereference in McAfee Endpoint Security (ENS) - CVE-2021-23883

Vulnerability identifier: #VU50730

Vulnerability risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-23883

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
McAfee Endpoint Security (ENS)
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: McAfee

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A local administrator can trigger denial of service conditions via a specific system call which is not handled correctly.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

McAfee Endpoint Security (ENS): before 10.6.1 February 2021 Update

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External links
https://kc.mcafee.com/corporate/index?page=content&id=SB10345

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.