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Mozilla Firefox EUVDEUVD-2026-60754

| CVE-2026-74948 MEDIUM
Information Exposure (CWE-200)
2026-08-18 mozilla GHSA-v63p-fxw9-fq8j
Information Disclosure Mozilla
6.5
CVSS 3.1 · Vendor: mozilla
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Severity by source

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

Browser Graphics flaw requires only user page-visit (UI:R, PR:N, AV:N); pure information disclosure yields C:H with no integrity or availability impact.

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

Primary rating from Vendor (mozilla).

CVSS VectorVendor: mozilla

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

4
Analysis Generated
Aug 21, 2026 - 21:30 vuln.today
CVSS changed
Aug 21, 2026 - 21:22 NVD
6.5 (MEDIUM)
CVE Published
Aug 18, 2026 - 12:23 cve.org
MEDIUM 6.5
CVE Published
Aug 18, 2026 - 12:23 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Information disclosure in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, and Firefox ESR 153.1.

AnalysisAI

Information disclosure in Firefox's Graphics component exposes sensitive data to remote attackers who can lure users to a malicious webpage. All Firefox release channels prior to version 154 and multiple ESR branches are affected, with fixes shipping in Firefox 154, ESR 115.39, ESR 140.14, and ESR 153.1. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Attacker hosts malicious webpage
Delivery
User navigates to page via phishing or redirect
Exploit
Page triggers crafted Graphics component rendering
Execution
Firefox leaks sensitive data to page context
Impact
Attacker script exfiltrates disclosed information
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Vulnerability AssessmentAI

Exploitation The user must navigate to an attacker-controlled or compromised webpage using an unpatched Firefox version (any release prior to 154, or any ESR prior to the respective fixed versions). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 6.5 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) reflects a genuine but constrained threat: network-reachable, low-complexity exploitation with no privileges required, but mandatory user interaction limits mass exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker hosts a malicious webpage containing crafted content that triggers the vulnerable Graphics component code path when rendered by Firefox. A user browsing to the page - via phishing link, malicious ad, or compromised site - causes the browser to inadvertently expose sensitive data (potentially cross-origin rendered content or memory artifacts) that the attacker's page script can then exfiltrate. …
Remediation The primary fix is to upgrade to Firefox 154 or later for standard release users. … Detailed patch versions, workarounds, and compensating controls in full report.
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Threat intelligence, references, and detailed analysis are available after sign-in.

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Same technique Information Disclosure

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
Container suse/kiosk/firefox-esr:140.14-75.12 Affected
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Desktop Applications 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed

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EUVD-2026-60754 vulnerability details – vuln.today
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