CVE-2017-9526 describes a vulnerability in Libgcrypt versions prior to 1.7.7, specifically affecting the EdDSA signing process in products like GnuPG. An attacker who can observe side-channel information during signing could recover the long-term secret key. This medium-severity vulnerability (CVSS 5.9) requires high attack complexity (AC:H) but allows for full confidentiality impact (C:H) without user interaction. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.7.6CPE matchmatch criteria | cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.