CVE-2026-16400: Vulnerability in Mozilla Firefox
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153.
AI Analysis
Technical Summary
CVE-2026-16400 is an information disclosure vulnerability affecting the DOM security component in Mozilla Firefox. The vulnerability was publicly disclosed and fixed in Firefox 153. The vendor advisory from Mozilla confirms the fix and categorizes the impact as moderate. No CVSS score is provided. The vulnerability relates specifically to the DOM security component and involves unauthorized information exposure. No known exploits in the wild have been reported.
Potential Impact
The vulnerability allows information disclosure within the DOM security component, which could lead to unauthorized access to sensitive data handled by the browser. The vendor rates the impact as moderate. There are no reports of active exploitation in the wild.
Mitigation Recommendations
This vulnerability has been fixed in Mozilla Firefox version 153. Users and administrators should update to Firefox 153 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-16400: Vulnerability in Mozilla Firefox
Description
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16400 is an information disclosure vulnerability affecting the DOM security component in Mozilla Firefox. The vulnerability was publicly disclosed and fixed in Firefox 153. The vendor advisory from Mozilla confirms the fix and categorizes the impact as moderate. No CVSS score is provided. The vulnerability relates specifically to the DOM security component and involves unauthorized information exposure. No known exploits in the wild have been reported.
Potential Impact
The vulnerability allows information disclosure within the DOM security component, which could lead to unauthorized access to sensitive data handled by the browser. The vendor rates the impact as moderate. There are no reports of active exploitation in the wild.
Mitigation Recommendations
This vulnerability has been fixed in Mozilla Firefox version 153. Users and administrators should update to Firefox 153 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-07-20T21:57:31.408Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-68/","vendor":"Mozilla"}]
Threat ID: 6a5f6cc22a4a8d598926294a
Added to database: 07/21/2026, 12:57:38 UTC
Last enriched: 07/21/2026, 13:14:11 UTC
Last updated: 07/21/2026, 22:51:54 UTC
Views: 4
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