CVE-2020-14967

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\0' bytes to cipherte...

Published: Jun 22, 2020Updated: Jun 22, 2026 Sources: CVE List NVD GHSACWE-119

9.8CRITICAL

Description

RSA PKCS#1 decryption vulnerability with prepending zeros in jsrsasign

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-119

Affected Products

package-ecosystem

oss-project·JP

jsrsasignLibrary

OSS Libraries / generic-library

netapp

commercial·US

max data

Hardware Firmware

and 1 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

https://github.com/kjur/jsrsasign/security/advisories/GHSA-xxxq-chmp-67g4

github.com

https://nvd.nist.gov/vuln/detail/CVE-2020-14967

nvd.nist.gov

https://github.com/kjur/jsrsasign/issues/439

github.com

and 11 more references View all →

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Exploit details & PoC links

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