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CVE-2026-10702 is a JIT miscompilation vulnerability in Firefox’s JavaScript Engine, specifically the JIT component / IonMonkey. The provided content states that the flaw was fixed in Firefox 151.0.3. Supporting reporting further describes it as the first stage of Nebula Security’s two-stage IonStack exploit chain, where exploitation yields code execution within the browser’s renderer process and enables escape from the browser sandbox. No vulnerable function or root-cause-level implementation detail beyond JIT miscompilation in the JavaScript engine is provided in the available content.
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A Firefox vulnerability described as the first step in the IonStack attack chain, allowing code execution within the browser and sandbox escape.
A Firefox IonMonkey JIT vulnerability used as the first stage in the described exploit chain to achieve code execution in the browser renderer before chaining to GhostLock for privilege escalation.
A Firefox vulnerability that enables code execution in the browser and sandbox escape, used as the first stage in a demonstrated exploit chain with GhostLock on Firefox for Android.
A Mozilla Firefox vulnerability fixed in Firefox 151.0.3; no further technical details are provided in the content.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.