Vulnerability in CIRCL's FourQ Elliptic Curve Implementation
CVE-2025-8556

3.7LOW

Key Information:

Vendor

Red Hat
Status
Builds For Red Hat Openshift
Custom Metric Autoscaler Operator For Red Hat Openshift
Multicluster Global Hub
Openshift Pipelines
Vendor
CVE Published:
6 August 2025

What is CVE-2025-8556?

A vulnerability in CIRCL's implementation of the FourQ elliptic curve allows attackers to exploit session security weaknesses. By leveraging low-order point injection and inadequate point validation during Diffie-Hellman key exchanges, an attacker can potentially compromise the integrity of secure communications. This flaw highlights the importance of rigorous point validation in cryptographic implementations.

References

https://access.redhat.com/security/cve/CVE-2025-8556
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2371624
issue-trackingx_refsource_REDHAT
https://github.com/cloudflare/circl

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-8556 : Vulnerability in CIRCL's FourQ Elliptic Curve Implementation