CVE-2025-8556 | BDVDB-2026-288563 Detail
Red HatBuilds for Red Hat OpenShift
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.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: network.
Weaknesses#
- CWE-1287 Improper Validation of Specified Type of Input
References#
- https://access.redhat.com/security/cve/CVE-2025-8556
- https://bugzilla.redhat.com/show_bug.cgi?id=2371624
- https://github.com/cloudflare/circl
- https://github.com/cloudflare/circl/security/advisories/GHSA-2x5j-vhc8-9cwm
- https://github.com/cloudflare/circl/tree/v1.6.1
- https://www.botanica.software/blog/cryptographic-issues-in-cloudflares-circl-fourq-implementation
- https://news.ycombinator.com/item?id=45669593
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.