CVE-2026-28364

HIGH

7.9

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.

Details CVE

Score CVSS v3.17.9

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie2/27/2026

Derniere modification3/6/2026

Sourcenvd

Observations honeypot0

Produits affectes

ocaml:ocaml

Faiblesses (CWE)

CWE-126

References

https://github.com/ocaml/security-advisories/blob/generated-osv/2026/OSEC-2026-01.json(cve@mitre.org)

https://osv.dev/vulnerability/OSEC-2026-01(cve@mitre.org)

Correlations IOC

Aucune correlation enregistree

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