CVE-2025-8556

Github.com/cloudflare/circl: circl-fourq: missing and wrong validation can lead to incorrect results

LOW
3.7
CVSS Score
Published: August 6, 2025 at 08:48 AM UTC
Updated: June 17, 2026 at 10:07 AM UTC
22 products affected across 2 vendorsCIRCLOpenShift Container PlatformOpenShift AI

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Severity
LOW3.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.

Affected

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

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWredhat
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-347CWE-1287

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