CVE-2016-2537

mediumpriority · track · 31EPSS 0.018 · 79 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.85% (79th) EPSS

CVSS 5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

The is-my-json-valid package before 2.12.4 for Node.js has an incorrect exports['utc-millisec'] regular expression, which allows remote attackers to cause a denial of service (blocked event loop) via a crafted string.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-1333US

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
is my json valid project is my json valid≤ 2.12.3nvdUScpe:2.3:a:is_my_json_valid_project:is_my_json_valid:*:*:*:*:*:*:*:*
npm is-my-json-valid< 2.12.4osvUSpkg:npm/is-my-json-valid

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-f522-ffg8-j8r6Regular Expression Denial of Service in is-my-json-valid2017-10-24ghsa · osvUS
Version of `is-my-json-valid` before 2.12.4 are vulnerable to regular expression denial of service (ReDoS) via the email validation function. ## Recommendation Update to version 2.12.4 or later.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2016-02-23modified 2026-06-17

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+25194 more

references (6)

External citations — patches, advisories, analysis.

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