CVE-2021-4198

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.4% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-03-07 11:30Z4 YR AGO

Last updated

2024-09-17 02:06Z2 YR AGO

Reserved

2022-01-04

Assigning CNA

Bitdefender

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

0c68219ae2d232e990b65e07368b04e08f60505346fdd5c64f4b7af053478c24

• www.bitdefender.comhttps://www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-pointer-dereference-in-multiple-bitdefender-products-va-10016/x_refsource_MISC
• www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-22-483/x_refsource_MISC