NULL pointer dereference in Bitdefender Antivirus Plus
CVE-2021-4198
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.005 (44.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.005 · change: -0.000
Affected products
- Bitdefender Antivirus Plus — versions unspecified
- Bitdefender Antivirus Plus
- Bitdefender Endpoint Security Tools — versions unspecified
- Bitdefender Endpoint Security Tools
- Bitdefender Internet Security — versions unspecified
- Bitdefender Internet Security
- Bitdefender Total Security — versions unspecified
- Bitdefender Total Security
- Bitdefender Vpn Standalone — versions unspecified
- Bitdefender Vpn Standalone
Weakness classification (CWE)
References
- www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-pointer-… (Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-22-483/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-4198?
- CVE-2021-4198 is a medium-severity vulnerability in Bitdefender Antivirus Plus, classified under NULL Pointer Dereference. CVSS score: 6.1/10. Published 2022-03-07.
- How severe is CVE-2021-4198?
- Medium severity. CVSS v3 base score is 6.1 out of 10.