CVE-2025-3859

mediumpriority · track · 24EPSS 0.002 · 10 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.20% (10th) EPSS

CVSS 6.1 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-28

Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different webpage. This vulnerability was fixed in Focus 138.

cvss

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

6.1

010

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

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nsecondaryexploitability 2.8 · impact 1.4

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-601USprimaryCWE-451US

affected products (3)

Products and version ranges known to be affected.

Mozilla Firefox Focus for iOS <138all versionscert_bundDE
Mozilla Firefox≤ Focus for iOS <138cert_bundDE
mozilla firefox focus< 138.0nvdUScpe:2.3:a:mozilla:firefox_focus:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0913Mozilla Firefox Focus für iOS: Schwachstelle ermöglicht Darstellen falscher InformationenDeutsch2025-05-01csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle in Mozilla Firefox Focus für iOS 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 nvd NVD CVE.org MITRE

published 2025-04-30modified 2026-06-17

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references (7)

External citations — patches, advisories, analysis.

scry

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