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Firefox for Android EUVDEUVD-2026-69076

| CVE-2026-84127 MEDIUM
Information Exposure (CWE-200)
2026-09-01 mozilla GHSA-jvhv-r392-774p
Information Disclosure Mozilla
4.3
CVSS 3.1 · Vendor: mozilla
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Severity by source

Vendor (mozilla) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
vuln.today AI
4.3 MEDIUM

Network-delivered info disclosure requiring user interaction; no attacker privileges needed, impact limited to partial confidentiality loss with no integrity or availability consequence.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SUSE
HIGH
qualitative
Red Hat
6.5 MEDIUM
qualitative

Primary rating from Vendor (mozilla).

CVSS VectorVendor: mozilla

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

5
Metadata Corrected
Sep 01, 2026 - 16:40 vuln.today
tag: Google removed
Analysis Generated
Sep 01, 2026 - 15:54 vuln.today
CVSS changed
Sep 01, 2026 - 15:22 NVD
4.3 (MEDIUM)
CVE Published
Sep 01, 2026 - 12:18 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 01, 2026 - 12:18 cve.org
MEDIUM 4.3

DescriptionCVE.org

Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.

AnalysisAI

Information disclosure in Firefox for Android's WebExtensions component exposes sensitive browser or cross-origin data to remote attackers who can induce user interaction. Affecting all Firefox for Android versions prior to 155, the flaw is accessible over the network with low complexity but requires a user to interact with attacker-controlled content, gating mass exploitation. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires a Firefox for Android user to interact with attacker-controlled content - for example, by visiting a malicious web page or by installing and running a crafted WebExtension. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.3 Medium rating is consistent with the constrained impact: confidentiality impact is Low, with no integrity or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: Firefox 155. … Detailed patch versions, workarounds, and compensating controls in full report.
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Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected

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EUVD-2026-69076 vulnerability details – vuln.today
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