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VulnerabilityPublished Updated

CVE-2025-43515: Apple Compressor · Improper Access Control

Affects Apple CompressorSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High · fixed in 4.11.1 : patch Apple Compressor soon.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.11.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Nov 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Apple CompressorAffected
  • =0
Fixed in–

AI-suggested

Organizations should immediately upgrade Apple Compressor to version 4.11.1 or later, where the vulnerability is fixed by refusing external connections by default. Until upgrades can be applied, network administrators should restrict access to Compressor servers using network segmentation, firewall rules, or VLANs to limit exposure only to trusted devices. Disable any unnecessary network services on systems running Compressor and monitor network traffic for unusual connection attempts to Compressor ports. Employ network intrusion detection systems (NIDS) to detect anomalous activity targeting Compressor servers. Regularly audit and update access control policies to ensure only authorized users and devices can communicate with Compressor instances. Additionally, implement endpoint protection and application whitelisting to reduce the risk of arbitrary code execution. Maintain up-to-date backups of critical media assets to enable recovery in case of compromise.

Description

The issue was addressed by refusing external connections by default. This issue is fixed in Compressor 4.11.1. An unauthenticated user on the same network as a Compressor server may be able to execute arbitrary code.

References

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