7.9

CVE-2026-28364

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Ocaml ≫ Ocaml Version < 4.14.3
Ocaml ≫ Ocaml Version >= 5.0.0 < 5.4.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.112
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cve@mitre.org 7.9 2.5 4.7
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.9 2.5 4.7
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

CWE-126 Buffer Over-read

The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.

https://github.com/ocaml/security-advisories/blob/generated-osv/2026/OSEC-2026-01.json
Vendor Advisory
https://osv.dev/vulnerability/OSEC-2026-01
Third 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