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Case File

CVE-2011-4574

CRITICAL · CVSS 9.8 EPSS 1.05%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-27 · Last synced 2026-08-04

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CVE
CVE-2011-4574
Severity
CRITICAL
CVSS
9.8
EPSS
1.05%

Original NVD Description

PolarSSL versions prior to v1.1 use the HAVEGE random number generation algorithm. At its heart, this uses timing information based on the processor's high resolution timer (the RDTSC instruction). This instruction can be virtualized, and some virtual machine hosts have chosen to disable this instruction, returning 0s or predictable results.

Related CVEs

Other vulnerabilities affecting the same vendor(s)