CVE-2026-87733
CVSS Score
6.2
EPSS Score
0.0%
EPSS Percentile
0th
An issue was discovered in the mirage-crypto-ec function before 2.2.0 for OCaml. The ECDSA functions {P256,P384,P521}.Dsa.pub_of_octets accept 0x00, the encoding of the point at infinity, as a public key. With that public key, signatures can be forged without a private key.
| CWE | CWE-295 |
| Vendor | ocaml |
| Product | mirage-crypto-ec |
| Published | Sep 9, 2026 |
| Last Updated | Sep 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
OCaml / mirage-crypto-ec
0 < 2.2.0