CVSS 3.0
6.8 mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:NCVE-2017-7526
libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
Severity
- EPSS
- 3.8% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-310, CWE-200
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- debian:debian_linux
- gnupg:libgcrypt