Loading vulnerability…
CVE-2026-100781 is a sandbox-escape vulnerability in Mozilla Firefox's Graphics: WebRender component caused by incorrect boundary conditions. Affected installations should be updated to a release containing Mozilla's fix.
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.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical-severity network-exploitable vulnerability tracked as CVE-2026-100781, for which the referenced scanner plugin identifies unpatched Debian Linux 12.0, 13.0, and 14.0 systems, including systems with firefox-esr listed in the CPE data. CVSS v3.0 is 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
A sandbox-escape vulnerability caused by incorrect boundary conditions in Firefox's Graphics: WebRender component.
A Mozilla Firefox vulnerability referenced by the Firefox 157.0 security update; no technical flaw details are supplied.
Mozilla Firefox vulnerability addressed by the Firefox 157.0 advisory; no individual technical details are provided.
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.