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Case File

CVE-2020-15656

HIGH · CVSS 8.8 EPSS 1.51%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-08-10 · Last synced 2026-08-04

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CVE
CVE-2020-15656
Severity
HIGH
CVSS
8.8
EPSS
1.51%
Firefox Java

Original NVD Description

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.