CVE-2026-28364
7.9 · HIGHOverview
CVE-2026-28364 is a high-severity vulnerability affecting ocaml ocaml. It was published on February 27, 2026 and has a CVSS 3.1 base score of 7.9 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
In OCaml before 4.14.3 and 5.x before 5.4.1, a buffer over-read in Marshal deserialization (runtime/intern.c) enables remote code execution through a multi-phase attack chain. The vulnerability stems from missing bounds validation in the readblock() function, which performs unbounded memcpy() operations using attacker-controlled lengths from crafted Marshal data.
Remediation
Check the references section for vendor advisories and patches from ocaml. Update ocaml to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ocaml | ocaml | >= 0, < 4.14.3 | Affected |
References
Frequently Asked Questions
What is CVE-2026-28364?
CVE-2026-28364 is a high-severity vulnerability affecting ocaml ocaml. It was published on February 27, 2026 and has a CVSS 3.1 base score of 7.9 (HIGH).
How severe is CVE-2026-28364?
This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-28364?
Check the references section for vendor advisories and patches from ocaml. Update ocaml to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-28364?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-28364 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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