Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-74971— Information disclosure in the DOM: UI Events & Focus Handling component

AI Predicted 4.3 Difficulty: Moderate

Possible ATT&CK Techniques 1AI

T1005 · Data from Local System

Affected Version Matrix 6

VendorProductVersion RangeStatus
MozillaFirefox140.14≤ 140.*unaffected
153.1≤ 153.*unaffected
154≤ *unaffected
MozillaThunderbird140.14≤ 140.*unaffected
153.1≤ 153.*unaffected
154≤ *unaffected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-74971

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Information disclosure in the DOM: UI Events & Focus Handling component
Source: CVE Program / CVE List V5
Vulnerability Description
Information disclosure in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
MozillaFirefox 140.14 ~ 140.* -
MozillaThunderbird 140.14 ~ 140.* -

II. Public POCs for CVE-2026-74971

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-74971

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-74971 (6)

Same Patch Batch · Mozilla · 2026-08-18 · 58 CVEs total

CVE-2026-74952Privilege escalation in the Application Update component
CVE-2026-74979Mitigation bypass in the Add-ons Manager component
CVE-2026-74982Denial-of-service in the Widget component
CVE-2026-74985Privilege escalation in the Enterprise Policies component
CVE-2026-74984Race condition in the JavaScript Engine component
CVE-2026-74986Site isolation issue in the CSS Parsing and Computation component
CVE-2026-74961Side-channel in the Web Audio component
CVE-2026-74958Information disclosure in the WebRTC component
CVE-2026-74966Information disclosure in the Form Autofill component
CVE-2026-74956Same-origin policy bypass in the DOM: Service Workers component
CVE-2026-74977Integer overflow in the Graphics component
CVE-2026-74951Clickjacking issue in Firefox for Android
CVE-2026-74955Privilege escalation in the Request Handling component
CVE-2026-74954Information disclosure due to side-channel in the Storage: Cache API component
CVE-2026-74937Use-after-free in the JavaScript: GC component
CVE-2026-74938Mitigation bypass in the JavaScript: GC component
CVE-2026-74950Privilege escalation in the Downloads API component
CVE-2026-74947Privilege escalation due to invalid pointer in the Graphics component
CVE-2026-74983Mitigation bypass in the Data Loss Prevention component
CVE-2026-74990Internally found bugs fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbi

Showing top 20 of 58 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2026-74971

No comments yet

Leave a comment