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CVE-2025-46386VulnerabilityPublished

CVE-2025-46386: Emby MediaBrowser · Insecure Direct Object Reference

Affects Emby MediaBrowserSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Emby MediaBrowserAffected
  • =4.9.0.35
Fixed in–

AI-suggested

Organizations should immediately assess their use of Emby MediaBrowser and identify any instances running version 4.9.0.35. Until an official patch is released, the following specific mitigations are recommended: 1) Restrict network access to the Emby server by implementing strict firewall rules limiting inbound connections to trusted IP addresses or VPNs only. 2) Enforce strong authentication and authorization policies within Emby, including reviewing user roles and permissions to minimize privilege levels. 3) Monitor logs for unusual access patterns or attempts to manipulate authorization keys or tokens. 4) Consider temporarily disabling remote access features or the affected service if feasible to reduce exposure. 5) Stay updated with vendor advisories for patches or workarounds and apply them promptly once available. 6) Conduct internal penetration testing focusing on authorization controls to detect any similar weaknesses. 7) Employ network segmentation to isolate media servers from critical infrastructure to limit potential lateral movement.

Description

CWE-639 Authorization Bypass Through User-Controlled Key

References

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