CVE-2025-63217Public exploitNetwork attack vector

Administrative takeover via cross-device JWT replay

Published Nov 18, 2025 · Updated Nov 19, 2025

Authentication bypass in Itel ID MUX build c041640a allows remote attackers to gain administrative access via a replayed JWT. The web interface accepts a JWT issued by another device because session handling does not bind token scope or audience to the target appliance. Possession of a valid token from any device running the same firmware is sufficient to change settings and control a different device despite separate passwords and networks.

CVSS severity9.8
Critical
EPSS probability0.56%
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 Itel ID MUX build c041640a allows remote attackers to gain administrative access via a replayed JWT. The web interface accepts a JWT issued by another device because session handling does not bind token scope or audience to the target appliance. Possession of a valid token from any device running the same firmware is sufficient to change settings and control a different device despite separate passwords and networks.

The record

CVE
CVE-2025-63217
Published
Nov 18, 2025
Updated
Nov 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-288, T1550.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

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

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1550.001Application Access Token

Public exploit references

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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