CVE-2025-43300

Published Aug 21, 2025

Last updated 16 days ago

Exploit known CVSS critical 10.0

Mobile device

Apple

hsm

iOS

Overview

Description: An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS 15.8.5, iOS 16.7.12 and iPadOS 16.7.12, iOS 18.6.2 and iPadOS 18.6.2, iPadOS 17.7.10, macOS Sequoia 15.6.1, macOS Sonoma 14.7.8, macOS Ventura 13.7.8. Processing a malicious image file may result in memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.
Source: product-security@apple.com
NVD status: Analyzed
Products: ipados, iphone_os, macos

Risk scores

CVSS 3.1

Type: Secondary
Base score: 10
Impact score: 6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity: CRITICAL

Known exploits

Data from CISA

Vulnerability name: Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
Exploit added on: Aug 21, 2025
Exploit action due: Sep 11, 2025
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-787

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "CBDB9319-770B-401B-8D7E-40BB6E370446",
            "versionEndExcluding": "15.8.5",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "9BD176E0-E5C8-4009-A214-B8C9AFA59934",
            "versionEndExcluding": "16.7.12",
            "versionStartIncluding": "16.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "627AF492-F9C4-4371-A223-D60CC5B6B62F",
            "versionEndExcluding": "17.7.10",
            "versionStartIncluding": "17.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "E640930D-FE94-4B16-9512-9E95091644E5",
            "versionEndExcluding": "18.6.2",
            "versionStartIncluding": "18.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "E1F99051-EE84-4D7D-8042-688337134F24",
            "versionEndExcluding": "15.8.5",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "D79D2C71-2062-4D9E-8E3C-23C00CEE6226",
            "versionEndExcluding": "16.7.12",
            "versionStartIncluding": "16.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "F0A2EB6F-B8DC-431A-8D79-9B333FFEC6F7",
            "versionEndExcluding": "18.6.2",
            "versionStartIncluding": "17.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "258926FE-693C-4212-AC37-CB84E541DB00",
            "versionEndExcluding": "13.7.8",
            "versionStartIncluding": "13.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "0FF9BBB9-6308-4730-AC66-90A7F6925B46",
            "versionEndExcluding": "14.7.8",
            "versionStartIncluding": "14.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "79B1205D-7176-41CD-BC7F-2F28D6D31935",
            "versionEndExcluding": "15.6.1",
            "versionStartIncluding": "15.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

Known exploits

Weaknesses

Social media

Configurations

Related CVEs

References