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Findings

Security fix · CVE-2025-31218

This issue was addressed by removing the vulnerable code.

Published May 12, 2025 · corrected/updated Apr 2, 2026 · Apple macOS · evidence confidence high

This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.5. An app may be able to observe the hostnames of new network connections.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2025-31218 is a medium public vulnerability record for Apple macOS. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Apple macOS is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: Apple macOS 0 <15.5 (0 <15.5). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 6.2 (technical impact); EPSS 0.2% (30-day exploitation probability). It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: cve_org, epss, euvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2025 · EUVD

    Detected

    This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.5. An app may be able to observe the hostnames of new network connections.

  2. Apr 2, 2026 · EUVD

    Updated

    This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.5. An app may be able to observe the hostnames of new network connections.

Affected

Enter an installed version to get a verified affected / not-affected result against the ranges below.

  • vendor Apple macOS 0 <15.50 <15.5

Sources

  • CVE.orgVulnerability recordCVE-2025-31218

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-31218

    30-day exploitation probability 0.2%

    first.org
  • EUVDVulnerability recordEUVD-2025-14779

    This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.5. An app may be able to observe the hostnames of new network connections.

    euvd.enisa.europa.eu

References