CVE-2023-6870

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Published Dec 19, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

Applications which spawn a Toast notification in a background thread may have obscured fullscreen notifications displayed by Firefox.
*This issue only affects Android versions of Firefox and Firefox Focus.* 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 [-]

AND

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_focus:-:::::::*

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.383% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1823316
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-56/

History

No history.

Subscriptions

Google Android

Mozilla Firefox Firefox Focus

Weaknesses

NVD-CWE-noinfo

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 No data

No data.

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.

{"affected": [{"affectedData": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "121", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "A3D81D72-5965-4DB7-BFA7-9A32A9108919", "versionEndExcluding": "121.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox_focus:-:*:*:*:*:*:*:*", "matchCriteriaId": "A33B6DCD-A1B9-46E2-A0EF-33DDBB9508D3", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Applications which spawn a Toast notification in a background thread may have obscured fullscreen notifications displayed by Firefox. \n*This issue only affects Android versions of Firefox and Firefox Focus.* This vulnerability affects Firefox < 121."}, {"lang": "es", "value": "Las aplicaciones que generan una notificaci\u00f3n Toast en un hilo en segundo plano pueden haber oscurecido las notificaciones en pantalla completa mostradas por Firefox. *Este problema solo afecta a las versiones Firefox y Firefox Focus de Android.* Esta vulnerabilidad afecta a Firefox < 121."}], "id": "CVE-2023-6870", "lastModified": "2026-06-17T06:51:35.117", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-12-19T14:15:08.087", "references": [{"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1823316"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202401-10"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2023-56/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1823316"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202401-10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2023-56/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}