Vulnerability Intelligence Report
Sandbox escape due to invalid pointer in the Disability Access APIs component
CVE-2026-16367
Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
No Active Exploit Signals
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:0.14%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Mozilla | Firefox | 153 <= * (unaffected) |
| Mozilla | Thunderbird | 153 <= * (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.141%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Mozilla Corporation · Vendor · USA |
| Reserved | 2026-07-20T21:56:21 |
| Published | 2026-07-21T12:37:41 |
| Last Updated | 2026-07-22T19:18:26 |
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