Name: CVE-2026-1229: Incorrect Calculation
Creator: Rapid7
Published: 2026-02-24T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-1229, CVSS 9.8, EPSS 0.00389

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. ECDH and ECDSA signing relying on this curve are not affected.

The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .

CVSS Details

CVSS 4.0 Base Score: 2.9 (LOW)
CVSS 4.0 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:X/V:X/RE:X/U:Amber)
CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade rclone	Jun 18, 2026	Feb 24, 2026
Splunk	—	Upgrade Splunk Enterprise to version 10.0.7Upgrade Splunk Enterprise to version 9.3.13Upgrade Splunk Enterprise to version 10.2.4Upgrade Splunk Enterprise to version 10.4.0Upgrade Splunk Enterprise to version 9.4.12	Jun 12, 2026	Feb 24, 2026
Suse	—	Upgrade git-bug-bash-completionUpgrade rclone-bash-completionUpgrade go-sendxmppUpgrade amazon-ssm-agentUpgrade git-bug-fish-completionUpgrade rcloneUpgrade encUpgrade git-bug-zsh-completionUpgrade rclone-zsh-completionUpgrade git-bug	Apr 28, 2026	Mar 25, 2026

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence