CVE-2025-23109

mediumpriority · track · 0EPSS 0.002 · 8 %ileDEEUNLUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.19% (8th) EPSS

CVSS 6.5 · medium

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Nsecondaryexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Nsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-346USCWE-346US

affected products (5)

Products and version ranges known to be affected.

Mozilla Firefox ios <134all versionscert_bundDE
Mozilla Firefox≤ ios <134cert_bundDE
firefox_for_iosall versionsncsc_nlNLcpe:2.3:a:mozilla:firefox_for_ios:*:*:*:*:*:*:*:*
mozilla firefoxall versionsncsc_nlNLcpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla firefox< 134.0nvdUScpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2025-0016Kwetsbaarheden verholpen in Mozilla Firefox en ThunderbirdNL2025-01-15csaf · ncsc_nlNL
Mozilla heeft kwetsbaarheden verholpen in Firefox en Thunderbird (Specifiek voor versies onder 134 en 128.6).
WID-SEC-W-2025-0050Mozilla Firefox: Mehrere Schwachstellen ermöglichen das Darstellen falscher InformationenDeutsch2025-01-12csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox ausnutzen, um falsche Informationen darzustellen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2025-01-11modified 2026-10-05

references (7)

External citations — patches, advisories, analysis.

scry

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