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Findings

CVE-2025-31277

Apple Multiple Products Buffer Overflow Vulnerability

Published Jul 29, 2025 · corrected/updated Sep 21, 2026 · Apple Multiple Products · evidence confidence very high

The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

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-2025-31277 is a high public vulnerability record for Apple Multiple Products. CISA lists it as known exploited. Published remediation guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Apple Multiple Products is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: apple/ipados; apple/iphone os; apple/macos; apple/safari. Published remediation guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. 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 8.8, EPSS 1.6%. CISA lists it as known exploited. Weakness classes: CWE-119, CWE-120. Sources contributing to this record: cisa_kev, cve_org, epss, nvd. 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

    Confirmed in CISA KEV since Mar 20, 2026. Listed in the CISA Known Exploited Vulnerabilities catalog.

  • Patch and remediation

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA due date Apr 3, 2026.

  • 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. Jul 29, 2025 · Catalog

    Detected

    The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

  2. Mar 20, 2026 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  3. Apr 3, 2026 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  4. Sep 21, 2026 · Catalog

    Updated

    The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

Affected

  • cpe apple/ipadosversion unspecified
  • cpe apple/iphone osversion unspecified
  • cpe apple/macosversion unspecified
  • cpe apple/safariversion unspecified
  • cpe apple/tvosversion unspecified
  • cpe apple/visionosversion unspecified
  • cpe apple/watchosversion unspecified
  • cpe redhat/enterprise linux6.0
  • cpe webkitgtk/webkitgtkversion unspecified
  • vendor Apple Multiple Productsversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2025-31277

    Apple Safari, iOS, watchOS, visionOS, iPadOS, macOS, and tvOS contain a buffer overflow vulnerability that could allow the processing of maliciously crafted web content which may lead to memory corruption.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2025-31277

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-31277

    30-day exploitation probability 1.6%

    first.org
  • NIST NVDVulnerability recordCVE-2025-31277

    The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

    nvd.nist.gov

References