CVE-2021-4264

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

1.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 66.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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

2022-12-21 00:00Z3 YR AGO

Last updated

2024-08-03 17:23Z2 YR AGO

Reserved

2022-12-21

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant

Data version

5.1

Document digest

adf3ba51b0f33447cb4b1aa516289476c0cdc18e1237270b509efba1de2b3440

• vuldb.comhttps://vuldb.com/?id.216464vdb-entry
• vuldb.comhttps://vuldb.com/?ctiid.216464signaturepermissions-required
• github.comhttps://github.com/linkedin/dustjs/issues/804exploitissue-tracking
• github.comhttps://github.com/linkedin/dustjs/pull/805issue-tracking
• github.comhttps://github.com/linkedin/dustjs/commit/ddb6523832465d38c9d80189e9de60519ac307c3patch
• github.comhttps://github.com/linkedin/dustjs/releases/tag/v3.0.0patch