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Mozilla CVE-2026-4708

| EUVDEUVD-2026-14831 HIGH
Improper Check for Unusual or Exceptional Conditions (CWE-754)
2026-03-24 mozilla
Mozilla Information Disclosure Red Hat Suse
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
HIGH
qualitative
Red Hat
6.1 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

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

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 24, 2026 - 12:45 euvd
EUVD-2026-14831
Analysis Generated
Mar 24, 2026 - 12:45 vuln.today
CVE Published
Mar 24, 2026 - 12:30 nvd
HIGH 7.5

DescriptionCVE.org

Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 149 and Firefox ESR < 140.9.

AnalysisAI

A boundary condition error in Firefox's Graphics component allows information disclosure through improper memory access validation. This vulnerability affects Firefox versions below 149 and Firefox ESR versions below 140.9, enabling attackers to read sensitive memory contents from the graphics processing context. While no CVSS score or EPSS data is currently available, the vulnerability is documented across multiple Mozilla security advisories indicating active awareness by the vendor.

Technical ContextAI

The vulnerability resides in the Graphics rendering component of Mozilla Firefox (cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* and cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*), which handles low-level memory management for GPU operations and pixel buffer operations. Boundary condition errors (related to improper input validation at memory boundaries) allow attackers to bypass intended access controls and read adjacent memory regions. This class of vulnerability (Information Disclosure via Graphics component) typically involves heap or stack buffer over-reads where the Graphics subsystem fails to properly validate array indices or buffer offsets before memory access operations. The root cause is insufficient bounds checking during graphics operation processing, potentially in WebGL, Canvas 2D, or internal GPU abstraction layers.

RemediationAI

Upgrade Mozilla Firefox to version 149 or later and Firefox ESR to version 140.9 or later, with patches available through the Mozilla update mechanisms and advisory pages at https://www.mozilla.org/security/advisories/mfsa2026-20/ and https://www.mozilla.org/security/advisories/mfsa2026-22/. Until patching is feasible, mitigate exposure by disabling hardware acceleration in Firefox settings (reducing Graphics component attack surface), restricting untrusted web content through content filtering or proxy controls, and enforcing a Content Security Policy that limits script execution context. Organizations should prioritize patching within their standard update cycles given the information disclosure impact on graphics memory.

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Vendor StatusVendor

Debian

firefox
Release Status Fixed Version Urgency
sid vulnerable 148.0.2-1 -
(unstable) fixed (unfixed) -
firefox-esr
Release Status Fixed Version Urgency
bullseye vulnerable 115.14.0esr-1~deb11u1 -
bullseye (security) vulnerable 140.8.0esr-1~deb11u1 -
bookworm vulnerable 128.14.0esr-1~deb12u1 -
bookworm (security) vulnerable 140.8.0esr-1~deb12u1 -
trixie (security), trixie vulnerable 140.8.0esr-1~deb13u1 -
forky, sid vulnerable 140.8.0esr-1 -
(unstable) fixed (unfixed) -

SUSE

Severity: High
Product Status
Image SLES15-SP5-SAP-Azure-LI-BYOS Image SLES15-SP5-SAP-Azure-LI-BYOS-Production Image SLES15-SP5-SAP-Azure-VLI-BYOS Image SLES15-SP5-SAP-Azure-VLI-BYOS-Production Image SLES15-SP6-SAP-Azure-LI-BYOS Image SLES15-SP6-SAP-Azure-LI-BYOS-Production Image SLES15-SP6-SAP-Azure-VLI-BYOS Image SLES15-SP6-SAP-Azure-VLI-BYOS-Production Image SLES15-SP7-SAP-Azure-LI-BYOS-Production Image SLES15-SP7-SAP-Azure-VLI-BYOS-Production Affected
SUSE Liberty Linux 10 Fixed
SUSE Liberty Linux 8 Fixed
SUSE Liberty Linux 9 Fixed
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed

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CVE-2026-4708 vulnerability details – vuln.today
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