Base Score

CRITICAL9.8

CVE-2025-8042

Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability affects Firefox < 141.

VectorNETWORK

Published Bysecurity@mozilla.org

Published DateAug 19, 2025, 21:15

Weakness Type (CWE):CWE-732

CVSS Metrics

Base Score

9.8

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Severity

CRITICAL

Version

3.1

Attack Vector (AV)

NETWORK

Attack Complexity (AC)

LOW

Privileges Required (PR)

NONE

User Interaction (UI)

NONE

Scope (S)

UNCHANGED

Confidentiality (C)

HIGH

Integrity (I)

HIGH

Availability (A)

HIGH

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1791322
https://www.mozilla.org/security/advisories/mfsa2025-56/

Base Score

CRITICAL9.8

Weakness Type (CWE):CWE-732

CVSS Metrics

Base Score

9.8

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Severity

CRITICAL

Version

3.1

Attack Vector (AV)

NETWORK

Attack Complexity (AC)

LOW

Privileges Required (PR)

NONE

User Interaction (UI)

NONE

Scope (S)

UNCHANGED

Confidentiality (C)

HIGH

Integrity (I)

HIGH

Availability (A)

HIGH