CVE-2021-23566

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

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 37.9% of scored records. A rank, not a probability.

NVD base score

5.5 (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:H/I:N/A:N

NVD analysis status

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

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2022-01-14 20:05Z4 YR AGO

Last updated

2025-11-03 21:44Z11 MO AGO

Reserved

2021-01-08

Assigning CNA

snyk

Record state

PUBLISHED

Severity

Medium (CVSS 4.0)

CNA CVSS vector

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

Weaknesses

• CWE-704Incorrect Type Conversion or CastClass
• CWE-212Improper Removal of Sensitive Information Before Storage or TransferBase

Data version

5.2

Document digest

9abc514542d4ea8f643d8106e97623a41ea6d5195280ea68cb1f2f6b17e84c14

• snyk.iohttps://snyk.io/vuln/SNYK-JS-NANOID-2332193x_refsource_MISC
• snyk.iohttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2332550x_refsource_MISC
• gist.github.comhttps://gist.github.com/artalar/bc6d1eb9a3477d15d2772e876169a444x_refsource_MISC
• github.comhttps://github.com/ai/nanoid/commit/2b7bd9332bc49b6330c7ddb08e5c661833db2575x_refsource_MISC
• github.comhttps://github.com/ai/nanoid/pull/328x_refsource_MISC
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/01/msg00006.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/12/msg00025.html