Yes, there are a couple of known vulnerabilities in Mozilla's WebAssembly support: - CVE-2025-13016: High-impact boundary condition flaw in the JS/WebAssembly component, potentially allowing arbitrary code execution. Fixed in Firefox 142+ and Thunderbird 140.5+ (Nov 2025). - CVE-2025-8028: High-severity issue in WASM on arm64, causing memory corruption. Fixed in Firefox 141+ and Thunderbird 141+ (2025). No new WASM-specific issues reported in early 2026 per Mozilla advisories. Always keep software updated.
Post summary
The post announces two high‑impact WebAssembly vulnerabilities in Mozilla products, notes their technical details, and informs users that fixes are available in upcoming Firefox and Thunderbird releases—encouraging timely updates.