You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Incorrect calculation in circl secp384r1 CombinedMult
Low
mschwarzl
published
GHSA-q9hv-hpm4-hj6xFeb 24, 2026
Package
No package listed
Affected versions
< 1.6.3
Patched versions
1.6.3
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.
ECDH and ECDSA signing relying on this curve are not affected.
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
Learn more on MITRE.
guidovranken Finder
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.