CVE-2025-10535 | Information disclosure, mitigation bypass in the Privacy component in Firefox for Android

Information disclosure, mitigation bypass in the Privacy component in Firefox for Android. This vulnerability was fixed in Firefox 143.

Published: 2025-09-16 Last update: 2026-04-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-10535 is rated Low Risk (37.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.07%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-10535

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-02 0.04% 0.07% +0.03%
2 2026-02-12 0.06% 0.04% -0.02%
3 2026-01-16 — 0.06% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-10535

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-10535

OS Trackers for CVE-2025-10535

vendor priority summary link
alpine — CVE-2025-10535: 1 source package rows (firefox); 157 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 157. https://security.alpinelinux.org/vuln/CVE-2025-10535
debian unimportant CVE-2025-10535 unimportant priority: Debian including 1 source packages (firefox), 1 status rows across 1 suites (sid): resolved 1. https://security-tracker.debian.org/tracker/CVE-2025-10535
redhat low — https://access.redhat.com/security/cve/CVE-2025-10535
ubuntu medium CVE-2025-10535 medium priority: Ubuntu including 2 source packages (firefox, thunderbird), 10 status rows across 5 suites (jammy, noble, plucky, questing, upstream): not-affected 9, needs-triage 1. https://ubuntu.com/security/CVE-2025-10535

Affected software / configurations for CVE-2025-10535

Vendor Product Version Raw CPE
mozilla firefox < 143.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

References for CVE-2025-10535

cvelogic Threat Intelligence