Vulnerability in Jsrsasign_project Jsrsasign

CVE-2021-30246

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.

EPSS: 0.010 (57.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-30246?
CVE-2021-30246 is a critical-severity vulnerability in Jsrsasign_project Jsrsasign, classified under Improper Verification of Cryptographic Signature. CVSS score: 9.1/10. Published 2021-04-07.
How severe is CVE-2021-30246?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2021-30246 known to be exploited?
8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.