CVE-2021-3798

MEDIUM
5.5
CVSS Score
Published: August 23, 2022 at 03:48 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsOpencryptokiProject Opencryptoki

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

A flaw was found in openCryptoki. The openCryptoki Soft token does not check if an EC key is valid when an EC key is created via C_CreateObject, nor when C_DeriveKey is used with ECDH public data. This may allow a malicious user to extract the private key by performing an invalid curve attack.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.17.0
Affected range stops below 3.17.0, so it looks safe — our inference, not a vendor statement
All versions
Vendor states this is fixed in 3.17.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200NVD-CWE-Other

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