Loading vulnerability…
CVE-2025-14333 is a high-severity memory safety vulnerability affecting Mozilla Firefox, Firefox ESR, Thunderbird, and Thunderbird ESR. The issue is described as a set of memory safety bugs present in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird ESR 140.5. Mozilla indicated that some of these bugs showed evidence of memory corruption and could, with sufficient effort, potentially be exploited to achieve arbitrary code execution. The available information does not identify a single vulnerable function or subsystem for this CVE, and it appears to cover one or more memory corruption conditions grouped under a general memory safety classification.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
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.
21 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity memory safety vulnerability in Mozilla Firefox and Thunderbird, where memory corruption bugs could potentially be exploited to achieve arbitrary code execution. Affects Firefox and Thunderbird versions prior to 146 and ESR 140.6.
Memory safety bugs in Mozilla Firefox ESR, Thunderbird ESR, Firefox, and Thunderbird that could potentially be exploited for code execution.
Multiple memory safety bugs in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145, some of which could potentially be exploited to run arbitrary code.
Multiple memory safety bugs in Firefox ESR, Thunderbird, and Firefox, some of which could potentially be exploited to run arbitrary code.
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.