Vulnerability Details : 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.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-4198
- cpe:2.3:a:bitdefender:internet_security:*:*:*:*:*:*:*:*
- cpe:2.3:a:bitdefender:total_security:*:*:*:*:*:*:*:*
- cpe:2.3:a:bitdefender:antivirus_plus:*:*:*:*:*:*:*:*
- cpe:2.3:a:bitdefender:endpoint_security_tools:*:*:*:*:*:*:*:*
- cpe:2.3:a:bitdefender:vpn_standalone:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-4198
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-4198
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.6
|
LOW | AV:L/AC:L/Au:N/C:N/I:P/A:P |
3.9
|
4.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
1.8
|
4.2
|
Bitdefender | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
1.8
|
4.2
|
NIST |
CWE ids for CVE-2021-4198
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- cve-requests@bitdefender.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-4198
-
https://www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-pointer-dereference-in-multiple-bitdefender-products-va-10016/
messaging_ipc.dll NULL Pointer Dereference in multiple Bitdefender products (VA-10016) - BitdefenderVendor Advisory
-
https://www.zerodayinitiative.com/advisories/ZDI-22-483/
ZDI-22-483 | Zero Day InitiativeThird Party Advisory
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