What’s Vulnerable › Vulnerabilities

CVE-2023-24533: Incorrect multiplication of unreduced P-256 scalars in filippo.io/nistec

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-08 · updated 2026-06-17
• Weakness: CWE-682

Description

Multiplication of certain unreduced P-256 scalars produce incorrect results. There are no protocols known at this time that can be attacked due to this.

Affected products

• filippo.io/nistec: before 0.0.2 — fixed in 0.0.2

How to fix

Upgrade to a fixed version: filippo.io/nistec 0.0.2. Check the vendor advisory for mitigations.

References

• https://github.com/FiloSottile/nistec/commit/c58aa1223ccf3943513e1e661cebce95af137244
• https://go.dev/issue/58647
• https://pkg.go.dev/vuln/GO-2023-1595
• https://github.com/FiloSottile/nistec/commit/c58aa1223ccf3943513e1e661cebce95af137244
• https://go.dev/issue/58647
• https://pkg.go.dev/vuln/GO-2023-1595

Get alerted when CVE-2023-24533 or the next vulnerability affects your stack