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01 Record

CVE-2021-3795

Inefficient Regular Expression Complexity in sindresorhus/semver-regex

HighPUBLISHEDCNA: @huntrdev
CNA base score7.5 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

Inefficient Regular Expression Complexity in sindresorhus/semver-regex

03 Exploitation and scoring

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
1.51% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 74.0% of scored records. A rank, not a probability.
NVD base score
7.5 (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:H
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.

04 Metadata

Published
2021-09-15 16:23Z5 YR AGO
Last updated
2024-08-03 17:09Z2 YR AGO
Reserved
2021-09-11
Assigning CNA
@huntrdev
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-1333Inefficient Regular Expression ComplexityBase
  • CWE-400Uncontrolled Resource ConsumptionClass
Data version
5.1
Document digest
edf75159057e25e0c36195852d5392a38e3e5223a989a1c0b0d69b1000afb755

05 Affected products

VendorProductVersionsPlatforms
sindresorhussindresorhus/semver-regex< 4.0.1, < 3.1.3—

06 References