CVE-2026-1229

Summary

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 .

Affected Software

VendorProductVersion RangeStatus
CloudflareCIRCLCIRCL up to version 1.6.2 < 1.6.3affected

Weaknesses

  • CWE-682: CWE-682 Incorrect Calculation

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References