CVE-2025-5270

EPSS 0.02%
Published 27.05.2025 12:29:28
Last modified 11.06.2025 12:15:28
Source security@mozilla.org
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In certain cases, SNI could have been sent unencrypted even when encrypted DNS was enabled. This vulnerability affects Firefox < 139 and Thunderbird < 139.

Affected products Warnungen 0 Metrics 2 CWE 1 References 6

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD

This information is available to logged-in users.

Data is provided by the National Vulnerability Database (NVD)

Mozilla ≫ Firefox Version < 139.0

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.02%	0.046

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
134c704f-9b21-4f2e-91b3-4a467353bcc0	7.5	3.9	3.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-319 Cleartext Transmission of Sensitive Information

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

https://www.mozilla.org/security/advisories/mfsa2025-42/

Vendor Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1910298

Permissions Required

https://www.mozilla.org/security/advisories/mfsa2025-45/

https://nvd.nist.gov/vuln/detail/CVE-2025-5270

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2025-5270

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2025-5270

EUVD