CVE-2021-23364

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

2.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.7% of scored records. A rank, not a probability.

NVD base score

5.3 (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:U/C:N/I:N/A:L

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

2021-04-28 15:35Z5 YR AGO

Last updated

2024-09-17 00:06Z2 YR AGO

Reserved

2021-01-08

Assigning CNA

snyk

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-1333Inefficient Regular Expression ComplexityBase
• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

08e9041b51dc3891ff27384fba7880cafe1e039693d8db90ea4ab673d26e17c4

• snyk.iohttps://snyk.io/vuln/SNYK-JS-BROWSERSLIST-1090194x_refsource_MISC
• snyk.iohttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1277182x_refsource_MISC
• github.comhttps://github.com/browserslist/browserslist/blob/e82f32d1d4100d6bc79ea0b6b6a2d281a561e33c/index.js%23L472-L474x_refsource_MISC
• github.comhttps://github.com/browserslist/browserslist/commit/c091916910dfe0b5fd61caad96083c6709b02d98x_refsource_MISC
• github.comhttps://github.com/browserslist/browserslist/pull/593x_refsource_MISC