CVE-2025-13955

Adjacent authentication bypass via predictable Wi-Fi password

Published Dec 10, 2025 · Updated May 28, 2026

Authentication bypass in EZCast Pro II before 1.17478.177 allows physically proximate attackers to access the dongle over Wi-Fi. The access-point firmware derives its default Wi-Fi password from observable device identifiers instead of an unpredictable secret. Exploitation requires Wi-Fi range and the unchanged default password; successful authentication grants network access to the dongle.

CVSS severity9.3
Critical
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in EZCast Pro II before 1.17478.177 allows physically proximate attackers to access the dongle over Wi-Fi. The access-point firmware derives its default Wi-Fi password from observable device identifiers instead of an unpredictable secret. Exploitation requires Wi-Fi range and the unchanged default password; successful authentication grants network access to the dongle.

The record

CVE
CVE-2025-13955
Published
Dec 10, 2025
Updated
May 28, 2026
Vendor
EZCast
Product
EZCast Pro II
Classifications
CWE-330, CAPEC-115, T1110.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 10, 2025CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.17478.177

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

EZCast · EZCast Pro IIversion=0 <1.17478.177

Published CVSS scores

9.3NCSC.chCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:H/SA:N/AU:Y/RE:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
CAPEC-115Authentication Bypass
T1110.001Brute Force: Password Guessing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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