CVE-2026-87737

Timing Side Channel in NIST Elliptic‑Curve Scalar Multiplication

Published Sep 9, 2026 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
An issue was discovered in the mirage-crypto-ec package before 2.4.0 for OCaml. There is a timing side channel for NIST elliptic-curve scalar multiplication: the time required for a lookup can depend on a secret.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
First Time appeared Ocaml
Ocaml mirage-crypto-ec
Vendors & Products Ocaml
Ocaml mirage-crypto-ec
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Timing Side Channel in NIST Elliptic‑Curve Scalar Multiplication
Type Values Removed Values Added
Description An issue was discovered in the mirage-crypto-ec package before 2.4.0 for OCaml. There is a timing side channel for NIST elliptic-curve scalar multiplication: the time required for a lookup can depend on a secret.
Weaknesses CWE-208
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 9, 2026, 1:10 PM
Reserved
Sep 9, 2026, 4:21 AM
Status
Deferred
Published
Sep 9, 2026, 5:18 AM
Modified
Sep 9, 2026, 4:04 PM