CVE-2025-4920 – Mozilla Firefox Promise Object Out-of-Bounds Read/Write Vulnerability

May 17, 2025

CVE ID : CVE-2025-4920

Published : May 17, 2025, 10:15 p.m. | 2 hours, 31 minutes ago

Description : An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox
Severity: 0.0 | NA

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Highlights

CVE-2025-6273 – WebAssembly wabt Reachable Assertion Vulnerability

June 19, 2025

CVE ID : CVE-2025-6273

Published : June 19, 2025, 7:15 p.m. | 3 hours, 14 minutes ago

Description : A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic. This issue affects the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to reachable assertion. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains that this issue might not affect “real world wasm programs”.

Severity: 3.3 | LOW

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CVE-2025-4920 – Mozilla Firefox Promise Object Out-of-Bounds Read/Write Vulnerability

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