CVE search · CVE-2026-28364
CVE-2026-28364
high 7.8
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.
Details
- Status
- Modified
- Published
- Last changed
- Source
- cve@mitre.org
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | high 7.9 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N |
cve@mitre.orgSecondary |
| CVSS 3.1 | high 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
nvd@nist.govPrimary |
| CVSS 3.1 | high 7.9 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N |
0b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- ocaml · ocaml
References
- https://github.com/ocaml/security-advisories/blob/generated-osv/2026/OSEC-2026-01.jsonVendor Advisory
- https://osv.dev/vulnerability/OSEC-2026-01Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-28364
- https://bugzilla.redhat.com/show_bug.cgi?id=2443348
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28364.json