CVE-2022-34476

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Published Dec 22, 2022 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Description

ASN.1 parsing of an indefinite SEQUENCE inside an indefinite GROUP could have resulted in the parser accepting malformed ASN.1. This vulnerability affects Firefox < 102.

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	< 102

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-2022-37431	ASN.1 parsing of an indefinite SEQUENCE inside an indefinite GROUP could have resulted in the parser accepting malformed ASN.1. This vulnerability affects Firefox < 102.
Ubuntu USN	USN-5504-1	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 None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.707% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1387919
https://www.mozilla.org/security/advisories/mfsa2022-24/

History

Apr 15, 2025 7:15 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-20
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Mozilla Firefox

Weaknesses

Sources

CVE record Updated: Apr 15, 2025, 6:26 PM

Status: PUBLISHED
Assigner: mozilla
Published: Dec 22, 2022, 12:00 AM
Updated: Apr 15, 2025, 6:26 PM
Reserved: Jun 24, 2022, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 3, 2024, 9:15 AM

Updated: Aug 3, 2024, 9:15 AM

NVD Updated: Jun 17, 2026, 4:50 AM

Status: Modified
Published: Dec 22, 2022, 8:15 PM
Modified: Jun 17, 2026, 4:50 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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