AUGUST 4, 2026
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Case File

CVE-2025-1933

HIGH · CVSS 7.6 EPSS 0.31%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-03-04 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.6. It affects Firefox.

CVE
CVE-2025-1933
Severity
HIGH
CVSS
7.6
EPSS
0.31%
Firefox

Original NVD Description

On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

Related CVEs

Other vulnerabilities affecting the same vendor(s)