CVE-2021-3554

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

2.68% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 84.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-11-24 14:45Z4 YR AGO

Last updated

2024-09-16 20:03Z1 YR AGO

Reserved

2021-05-17

Assigning CNA

Bitdefender

Record state

PUBLISHED

Severity

Critical (CVSS 9.0)

CNA CVSS vector

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

Weaknesses

• CWE-284Improper Access ControlPillar

Data version

5.1

Document digest

ef5c6f4debb22eee043deb0a9a35b9222f8fa90da55b29554fdf6f7605a2f7cf

• www.bitdefender.comhttps://www.bitdefender.com/support/security-advisories/improper-access-control-vulnerability-patchesupdate-api-va-9825x_refsource_MISC