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CVE-2025-46387VulnerabilityPublished

CVE-2025-46387: 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

1. Immediate mitigation should include restricting access to Emby MediaBrowser instances to trusted networks and users only, using network segmentation and firewall rules to limit exposure. 2. Implement strong authentication and authorization policies, ensuring that user privileges are tightly controlled and monitored. 3. Monitor logs for unusual access patterns or attempts to manipulate user-controlled keys or tokens. 4. Disable or restrict features that allow user-controlled keys or tokens until a patch is available. 5. Engage with Emby vendor support channels to obtain updates on patch releases and apply them promptly once available. 6. Consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block suspicious authorization bypass attempts. 7. Conduct regular security assessments and penetration testing focused on authorization mechanisms within MediaBrowser deployments. 8. Educate administrators and users about the risks and signs of exploitation to enhance detection capabilities.

Description

CWE-639 Authorization Bypass Through User-Controlled Key

References

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