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CVE-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…

Medium6.1EPSS 3.8%
Published
Updated
Reserved
Assigned by
redhat

Description

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.

Scores

CVSS scores of CVE-2017-7526, by who scored it
Scored byCVSSScoreVector
redhatCNA (assigner)3.0Medium6.1CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
NVDNVD · Modified3.0Medium6.8CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS (exploitation in 30 days)
3.8% · top 9.9% of all CVEs (2 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Weakness

Affected products

  • GnuPG · libgcrypt

    • affected 1.7.8

References (12)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .