CVE-2026-1229

Severity CVSS v4.0:

LOW

Type:

Unavailable / Other

Publication date:

24/02/2026

Last modified:

24/02/2026

Description

The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas.<br /> ECDH and ECDSA signing relying on this curve are not affected.<br /> <br /> The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .

Impact

Vector 4.0

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/U:Amber CVSS v4.0 Severity and Metrics:

Base Score: 2.90 LOW
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/U:Amber

Attack Vector (AV): Network
Attack Complexity (AC): High
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): Low
Integrity (VI): Low
Availability (VA): Low
Confidentiality (SC): Low
Integrity (SI): Low
Availability (SA): Low
Safety (S): Negligible
Automatable (AU): Yes
Provider Urgency (U): Amber
Exploit Maturity (E): POC

Base Score 4.0

2.90

Severity 4.0

LOW

References to Advisories, Solutions, and Tools

https://github.com/cloudflare/circl