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Mozilla EUVDEUVD-2026-14835

| CVE-2026-4710 CRITICAL
Buffer Overflow (CWE-119)
2026-03-24 mozilla
Mozilla Buffer Overflow Red Hat Suse
Critical
Disputed · 9.8 NVD
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Severity by source

Sources disagree (Medium–Critical)
NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SUSE
CRITICAL
qualitative
Red Hat
6.1 MEDIUM
qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
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-2026-14835
Analysis Generated
Mar 24, 2026 - 12:45 vuln.today
CVE Published
Mar 24, 2026 - 12:30 nvd
CRITICAL 9.8

DescriptionCVE.org

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

AnalysisAI

An incorrect boundary conditions vulnerability exists in Firefox and Firefox ESR's Audio/Video component that enables information disclosure attacks. Firefox versions below 149 and Firefox ESR versions below 140.9 are affected. Attackers can exploit improper boundary validation in audio/video processing to leak sensitive information from the browser process.

Technical ContextAI

The vulnerability resides in the Audio/Video component of Mozilla Firefox, which handles multimedia content decoding and playback. This component processes various codec streams and containers that require strict boundary validation during buffer operations. The incorrect boundary conditions (related to CWE categories involving buffer management and bounds checking) suggest that the code fails to properly validate input dimensions, offsets, or length parameters when processing audio or video frames, leading to out-of-bounds reads. The affected products are identified by CPE strings cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* and cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*, indicating the vulnerability spans all Firefox and Firefox ESR versions below the patched thresholds.

RemediationAI

Upgrade Mozilla Firefox to version 149 or later, and upgrade Mozilla Firefox ESR to version 140.9 or later. Users should check their installed version via Help > About Firefox and allow the browser to automatically download and apply available updates. Organizations managing Firefox deployments should reference the official Mozilla security advisories at https://www.mozilla.org/security/advisories/mfsa2026-20/ and https://www.mozilla.org/security/advisories/mfsa2026-22/ for patch deployment timelines. Until patching is complete, consider disabling or restricting access to untrusted video/audio content sources through group policy or enterprise policy management tools. Monitor systems for suspicious processes spawned from Firefox that may attempt to read process memory.

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Same weakness CWE-119 – Buffer Overflow

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CVE-2017-11882 HIGH POC
7.8
CVE-2014-6332 HIGH POC
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CVE-2023-4966 CRITICAL POC
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CVE-2015-2426 HIGH POC
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CVE-2013-3918 HIGH POC
8.8
CVE-2017-11774 HIGH POC
7.8
CVE-2013-3660 HIGH POC
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CVE-2017-6736 HIGH POC
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Same technique Buffer Overflow

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CVE-2015-3113 CRITICAL POC
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CVE-2009-0927 HIGH POC
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CVE-2012-1889 HIGH POC
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CVE-2017-11882 HIGH POC
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CVE-2010-3333 HIGH POC
7.8

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: Critical
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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EUVD-2026-14835 vulnerability details – vuln.today
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