Disclosure summary
In OCaml through 4.14.3, Bigarray.reshape allows an integer overflow, and resultant reading of arbitrary memory, when untrusted data is processed.
Source-reported weakness categories
CWE-190
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Mar
Open original source · Updated Mar 31, 2026
In OCaml through 4.14.3, Bigarray.reshape allows an integer overflow, and resultant reading of arbitrary memory, when untrusted data is processed.
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 5.9
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 ocaml 5.1.1-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 ocaml 4.13.1-2 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 ocaml 5.1.1-2 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 ocaml 4.13.1-3 on CBL Mariner 2.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 5.1.1-2 · product IDs 20930-17084, 21150-17084
- Vendor guidance · product IDs 20930-17084, 21150-17084
- CBL-Mariner Releases · build 4.13.1-3 · product IDs 21039-17086, 21151-17086
- Vendor guidance · product IDs 21039-17086, 21151-17086
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-03-30T21:02:05-04:00
MODIFIED 2026-03-31T21:57:48-04:00
INGESTED 2026-10-08T12:45:09-04:00