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Mozilla Firefox CVE-2026-10701

| EUVDEUVD-2026-33989 HIGH
Buffer Overflow (CWE-119)
2026-06-02 mozilla GHSA-3vrv-754q-mq3j
Buffer Overflow Mozilla
7.5
CVSS 3.1 · Vendor: mozilla
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Severity by source

Vendor (mozilla) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Jun 03, 2026 - 19:22 vuln.today
CVSS changed
Jun 03, 2026 - 19:22 NVD
7.5 (HIGH)
CVE Published
Jun 02, 2026 - 17:15 nvd
UNKNOWN (no severity yet)

DescriptionCVE.org

Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 151.0.3.

AnalysisAI

Information disclosure in Mozilla Firefox prior to 151.0.3 allows remote attackers to read out-of-bounds memory via the Graphics: Text component when processing crafted content. The flaw stems from incorrect boundary conditions (CWE-119) in text rendering and can be triggered without user authentication, though no public exploit has been identified and EPSS scores it at just 0.02% likelihood of exploitation.

Technical ContextAI

The vulnerability resides in Firefox's Graphics: Text subsystem, which handles font glyph rasterization, text shaping, and rendering of textual content within web pages. CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) indicates the underlying defect is a missing or incorrect length/boundary check during memory operations - likely when measuring, indexing, or copying text-related buffer data. The affected CPE 'cpe:2.3:a:mozilla:firefox:*' covers the Firefox application across versions prior to 151.0.3. Although tagged as 'Buffer Overflow', the CVSS impact metrics (C:H/I:N/A:N) indicate this manifests as an out-of-bounds read leaking sensitive memory contents rather than a write primitive enabling code execution.

RemediationAI

Vendor-released patch: Firefox 151.0.3 - upgrade all installations to this version or later, as published in Mozilla advisory MFSA2026-54 (https://www.mozilla.org/security/advisories/mfsa2026-54/). Enterprise deployments using managed update channels (policies.json, MSI, or system package managers) should push 151.0.3 via their standard mechanism; users on the rapid release channel will typically receive the update automatically. If patching must be deferred, a partial compensating control is to disable JavaScript and restrict navigation to trusted sites via enterprise policy, since exploitation requires the browser to process attacker-controlled content - though this significantly degrades the browsing experience and is rarely tenable. Review the Bugzilla entry (https://bugzilla.mozilla.org/show_bug.cgi?id=2038537) once unrestricted for technical detail that may inform tighter ad-hoc mitigations.

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Same weakness CWE-119 – Buffer Overflow

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Same technique Buffer Overflow

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Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP7 Fixed
SUSE Linux Enterprise Server 16.0 Fixed

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CVE-2026-10701 vulnerability details – vuln.today
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