CVE-2025-14327

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

S

poofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, Firefox ESR < 140.7, and Thunderbird < 140.7.

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1970743	Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-92/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-95/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-03/
https://www.mozilla.org/security/advisories/mfsa2026-05/

Configurations

Configuration 1 (hide)

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

History

15 Jan 2026, 10:16

Type	Values Removed	Values Added
References		() https://www.mozilla.org/security/advisories/mfsa2026-05/ -
Summary	~~(en) Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, and Firefox ESR < 140.7.~~	(en) Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, Firefox ESR < 140.7, and Thunderbird < 140.7.

13 Jan 2026, 14:16

Type	Values Removed	Values Added
Summary	~~(en) Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146 and Thunderbird < 146.~~	(en) Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, and Firefox ESR < 140.7.
References		() https://www.mozilla.org/security/advisories/mfsa2026-03/ -

11 Dec 2025, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-09 16:17

Updated : 2026-01-15 10:16

NVD link : CVE-2025-14327

Mitre link : CVE-2025-14327

CVE.ORG link : CVE-2025-14327

JSON object : View

Products Affected

CWE

CWE-290

Authentication Bypass by Spoofing

{"id": "CVE-2025-14327", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2025-12-09T16:17:40.227", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1970743", "tags": ["Issue Tracking", "Permissions Required"], "source": "[email protected]"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-92/", "tags": ["Vendor Advisory"], "source": "[email protected]"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-95/", "tags": ["Vendor Advisory"], "source": "[email protected]"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-03/", "source": "[email protected]"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-05/", "source": "[email protected]"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-290"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-290"}]}], "descriptions": [{"lang": "en", "value": "Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, Firefox ESR < 140.7, and Thunderbird < 140.7."}], "lastModified": "2026-01-15T10:16:05.307", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "3EF4CBBC-DCB5-4540-8B8A-91DA759ED631", "versionEndExcluding": "146.0"}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "1CB46BC7-512D-45BF-BCF4-73FDDF94DBAF", "versionEndExcluding": "146.0"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}