Disclosure summary
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
Source-reported weakness categories
CWE-787
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-Apr
Open original source · Updated Sep 24, 2026
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 4.8
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 libgcrypt 1.10.3-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 libgcrypt 1.10.3-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 libgcrypt 1.10.3-1 on CBL-Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 libgcrypt 1.10.3-2 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 1.10.3-2 · product IDs 21235-17084, 21310-17084
- Vendor guidance · product IDs 21235-17084, 21310-17084
- Release Notes · product IDs 21237-21692
- Vendor guidance · product IDs 21237-21692
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-04-23T21:05:11-04:00
MODIFIED 2026-09-24T22:18:38-04:00
INGESTED 2026-10-08T12:45:03-04:00