CVE-2023-6866

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Published Dec 19, 2023 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Description

TypedArrays can be fallible and lacked proper exception handling. This could lead to abuse in other APIs which expect TypedArrays to always succeed. This vulnerability affects Firefox < 121.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Mozilla

Firefox

affected

Version	Status	Constraints
`unspecified`	affected	< 121

Configuration 1 [-]

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2023-59070	TypedArrays can be fallible and lacked proper exception handling. This could lead to abuse in other APIs which expect TypedArrays to always succeed. This vulnerability affects Firefox < 121.
Ubuntu USN	USN-6562-1	Firefox vulnerabilities

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.681% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1849037
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-56/

History

Feb 13, 2025 6:15 PM Affected versions updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:mozilla:firefox:-:::::::*
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Mozilla Firefox

Weaknesses

CWE-755

Sources

CVE record Updated: Feb 13, 2025, 5:26 PM

Status: PUBLISHED
Assigner: mozilla
Published: Dec 19, 2023, 1:38 PM
Updated: Feb 13, 2025, 5:26 PM
Reserved: Dec 15, 2023, 5:42 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 8:42 AM

Updated: Aug 2, 2024, 8:42 AM

NVD Updated: Jun 17, 2026, 6:51 AM

Status: Modified
Published: Dec 19, 2023, 2:15 PM
Modified: Jun 17, 2026, 6:51 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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