CVE-2026-87737
Quick assessment
Affected
OCaml mirage-crypto-ec
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 OCaml 的 mirage-crypto-ec 包 2.4.0 之前存在一个问题。NIST 椭圆曲线标量乘法存在计时侧信道漏洞：查找操作所需的时间可能取决于秘密值。
Possible ATT&CK Techniques 1 AI
T1518 · Software Discovery
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I. Basic Information for CVE-2026-87737
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| OCaml | mirage-crypto-ec | 0 ~ 2.4.0 | - |
|
II. Public POCs for CVE-2026-87737
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-87737 (1)
Same Patch Batch · OCaml · 2026-09-09 · 7 CVEs total
| CVE-2026-87734 | 7.5 HIGH | OCaml utcp 0.0.6 前 远程拒绝服务 |
| CVE-2026-87733 | 6.2 MEDIUM | OCaml mirage-crypto-ec 2.2.0前ECDSA签名伪造 |
| CVE-2026-87732 | 6.2 MEDIUM | OCaml mirage-crypto <2.2.0解密缓冲区信息泄露 |
| CVE-2026-57825 | 5.7 MEDIUM | OCaml opam 2.5.2前沙箱保护绕过漏洞 |
| CVE-2026-87736 | 4.3 MEDIUM | mirage-crypto-ec 2.3.0前 椭圆曲线公钥越界读取 |
| CVE-2026-87735 | 4.3 MEDIUM | ocaml mirage-crypto-pk<2.3.0 异常处理缺陷 |
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Same weakness: CWE-208
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V. Comments for CVE-2026-87737
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