CVE-2026-12301
Description
Memory safety bug in Firefox fixed in version 152, posing a high-severity risk.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Memory safety bug in Firefox fixed in version 152, posing a high-severity risk.
Vulnerability
A memory safety bug was present in Firefox affecting versions prior to 152. The vulnerability was fixed in Firefox 152, as detailed in Mozilla Security Advisory 2026-57 [1]. The exact nature of the memory safety issue is not publicly detailed.
Exploitation
No specific exploitation details are disclosed in the available references. Typically, exploitation of a memory safety bug requires an attacker to craft malicious content that triggers the vulnerability when processed by the browser, often without requiring user interaction beyond visiting a malicious page.
Impact
The impact is rated high by Mozilla [1]. A successful exploit could potentially allow an attacker to execute arbitrary code or cause a denial of service, depending on the specifics of the memory safety issue.
Mitigation
The vulnerability is fixed in Firefox 152, released on June 16, 2026 [1]. Users are advised to update to this version or later. No workarounds are available.
AI Insight generated on Jun 16, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1- Range: <152
Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
3News mentions
0No linked articles in our index yet.