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CVE-2026-16360 is a bundled Mozilla vulnerability covering multiple memory safety bugs affecting Firefox 152, Firefox ESR 115.37, and Firefox ESR 140.12. Mozilla stated that some of the underlying defects showed evidence of memory corruption and assessed that, with sufficient effort, some could potentially be exploited for arbitrary code execution. The available information does not identify the individual vulnerable functions or root causes for each underlying bug, but the issue class is consistent with memory corruption in browser components processed during normal content handling.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Memory-safety vulnerability fixed in Firefox 153; mentioned as one of the CVEs associated with the release’s security fixes, with memory-management issues potentially enabling code execution.
A specific vulnerability identifier mentioned as addressed in Firefox 153; the article does not include technical details beyond noting it was fixed.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.