Vulnerability in Jsrsasign Project
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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.010 (60.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- kjur.github.io/jsrsasign/ (Third Party Advisory, Release Notes)
- github.com/kjur/jsrsasign/issues/478 (Third Party Advisory)
- github.com/kjur/jsrsasign/releases/tag/10.1.13 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-30246?
- CVE-2021-30246 is a critical-severity vulnerability in Jsrsasign Project, 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.