CVE-2021-4198

moderate-risk
Published 2022-03-07

A NULL Pointer Dereference vulnerability in the messaging_ipc.dll component as used in Bitdefender Total Security, Internet Security, Antivirus Plus, Endpoint Security Tools, VPN Standalone allows an attacker to arbitrarily crash product processes and generate crashdump files. This issue affects: Bitdefender Total Security versions prior to 26.0.3.29. Bitdefender Internet Security versions prior to 26.0.3.29. Bitdefender Antivirus Plus versions prior to 26.0.3.29. Bitdefender Endpoint Security Tools versions prior to 7.2.2.92. Bitdefender VPN Standalone versions prior to 25.5.0.48.

Do I need to act?

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0.13% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
LOCAL / LOW complexity

Affected Products (5)

Antivirus Plus
Endpoint Security Tools
Internet Security
Vpn Standalone

Affected Vendors

Bitdefender

References (4)

Vendor Advisory https://www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-p...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-483/
Vendor Advisory https://www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-p...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-483/
33
/ 100
moderate-risk
Severity 20/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 12/34 · Low