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CVE-2025-1941— Lock screen setting bypass in Firefox Focus for Android

Quick assessment

Affected
Mozilla Firefox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 136之前版本存在访问控制错误漏洞，该漏洞源于身份验证绕过。

AI Predicted 5.4 Difficulty: Easy EPSS 0.36% · P29

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token

Affected Version Matrix 1

VendorProduct Version RangeStatus
Mozilla Firefox 136≤ * unaffected
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I. Basic Information for CVE-2025-1941

Vulnerability Information
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Vulnerability Title
Lock screen setting bypass in Firefox Focus for Android
Source: CVE Program / CVE List V5
Vulnerability Description
Under certain circumstances, a user opt-in setting that Focus should require authentication before use could have been be bypassed (distinct from CVE-2025-0245). This vulnerability was fixed in Firefox 136.
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
Vulnerability Title
Mozilla Firefox 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 136之前版本存在访问控制错误漏洞，该漏洞源于身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mozilla Firefox 136 ~ * -

II. Public POCs for CVE-2025-1941

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-1941

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Vendor Advisories for CVE-2025-1941 (1)

Same Patch Batch · Mozilla · 2025-03-04 · 17 CVEs total

CVE-2025-27425 QR code user confirmation bypass with invalid protocol
CVE-2025-27426 Firefox Mobile iOS Full Address Bar Spoof Using Server-Side Redirect to internal error pag
CVE-2025-27424 Firefox Mobile iOS Address Bar Spoof Using Server-Side Redirect to non-http Scheme
CVE-2025-1943 Memory safety bugs fixed in Firefox 136 and Thunderbird 136
CVE-2025-1937 Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR
CVE-2025-1938 Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbi
CVE-2025-1935 Clickjacking the registerProtocolHandler info-bar
CVE-2025-1942 Disclosure of uninitialized memory when .toUpperCase() causes string to get longer
CVE-2025-1936 Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents
CVE-2025-1934 Unexpected GC during RegExp bailout processing
CVE-2025-1932 Inconsistent comparator in XSLT sorting led to out-of-bounds access
CVE-2025-1940 Android Intent confirmation prompt tapjacking using Select options
CVE-2025-1933 JIT corruption of WASM i32 return values on 64-bit CPUs
CVE-2025-1931 Use-after-free in WebTransportChild
CVE-2025-1939 Tapjacking in Android Custom Tabs using transition animations
CVE-2025-1930 AudioIPC StreamData could trigger a use-after-free in the Browser process

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2025-1941

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