Description
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
Affected products
gnupg: libgcrypt
References6
- dev.gnupg.org/T8211 Broken Link
- lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html Third Party Advisory
- www.openwall.com/lists/oss-security/2026/04/21/1 Third Party Advisory
- cert-portal.siemens.com/productcert/html/ssa-019113.html
- cert-portal.siemens.com/productcert/html/ssa-082556.html
- cert-portal.siemens.com/productcert/html/ssa-457936.html
Metrics
- CVSS 3.1
-
6.7
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H - EPSS — exploit probability
- 0% percentile: 8 · as of 13 November 2026
- CWE
- CWE-787
Could this be exploited in your environment?
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