CVE-2026-12314
Description
Memory safety bug in Firefox fixed in version 152 and Firefox ESR 140.12, potentially leading to memory corruption.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Memory safety bug in Firefox fixed in version 152 and Firefox ESR 140.12, potentially leading to memory corruption.
Vulnerability
CVE-2026-12314 is a memory safety bug in Firefox that was fixed in Firefox 152 and Firefox ESR 140.12 [1][2]. The exact affected component and root cause are not disclosed in the available references.
Exploitation
The advisories classify this vulnerability as high severity. Specific attack prerequisites or exploitation steps are not detailed in the public references. Memory safety bugs in Firefox are typically reachable by processing malicious web content.
Impact
Successful exploitation of this memory safety bug could lead to memory corruption, potentially allowing an attacker to achieve arbitrary code execution or cause a denial of service. The impact is rated high by Mozilla [1][2].
Mitigation
The vulnerability is fixed in Firefox 152 and Firefox ESR 140.12, both released on June 16, 2026 [1][2]. No workarounds are documented; users should update to the patched versions.
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
2- Range: <140.12
- 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
5News mentions
0No linked articles in our index yet.