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Case File

CVE-2011-4121

CRITICAL · CVSS 9.8 EPSS 2.53%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-11-26 · Last synced 2026-08-04

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CVE
CVE-2011-4121
Severity
CRITICAL
CVSS
9.8
EPSS
2.53%
OpenSSL

Original NVD Description

The OpenSSL extension of Ruby (Git trunk) versions after 2011-09-01 up to 2011-11-03 always generated an exponent value of '1' to be used for private RSA key generation. A remote attacker could use this flaw to bypass or corrupt integrity of services, depending on strong private RSA keys generation mechanism.

Related CVEs

Other vulnerabilities affecting the same vendor(s)