CVE-2021-30246

Name: CVE-2021-30246 — Vulnerability Record
Brand: Quanteta Data Lab
SKU: CVE-2021-30246

CRITICAL

CVSS v3.1: 9.1 · EPSS: 0.0096 (56.9 percentile)

NetworkNo privilegesNo user interactionVendor advisory ref

Source data as of: 2026-06-22 05:01:24 UTC

At a glance

Severity: CRITICAL
CVSS: 9.1 v3.1 · NVD
EPSS: 0.0096 (56.9 percentile) · FIRST.org
CISA KEV: No
Attack conditions (CVSS vector): NetworkNo privilegesNo user interaction · Source: NVD Vector
Affected vendors: kjur
Published: 2021-04-07 · Modified: 2026-06-22
References: Jump to references (3)

CVSS / EPSS / KEV

CVSS v3.1 9.1 / 10 CRITICAL Source: NVD

EPSS 0.0096 56.9 percentile Source: FIRST.org

CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly recognized to be valid. NOTE: there is no known practical attack.

Record details

CVE ID: CVE-2021-30246
CVSS (v3.1): 9.1 (CRITICAL)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploitability subscore: 3.9
Impact subscore: 5.2
EPSS: 0.0096 (56.9 percentile) — 2026-06-22
CISA KEV: No
Weakness (CWE): CWE-347
Affected vendors: kjur
Affected configurations (CPE): 1
Published: 2021-04-07
Modified: 2026-06-22
Status: Modified

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Reference https://github.com/kjur/jsrsasign/issues/478
Patch https://github.com/kjur/jsrsasign/releases/tag/10.1.13
Reference https://kjur.github.io/jsrsasign/

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CVE-2021-30246

At a glance

CVSS / EPSS / KEV

Description

Record details

References

Related records

Same affected vendor

Same weakness type (CWE)

Published the same year