---
title: "CVE-2025-43300: Out-of-bounds Write | CubePath"
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…"
language: en
source: https://cubepath.com/security/cve/CVE-2025-43300
---

# CVE-2025-43300: Out-of-bounds Write | CubePath

## 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.

Official description from the CVE record, published by apple. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-43300)

## Key data

### CVSS 3.1 Critical 10.0

Score published by CISA-ADP in the CVE record.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

| Metric                 | Value   | What it means                                                                       |
| ---------------------- | ------- | ----------------------------------------------------------------------------------- |
| Attack vector          | Network | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity      | Low     | No special conditions are needed. The attack can be repeated at will.               |
| Privileges required    | None    | No account or privileges are needed.                                                |
| User interaction       | None    | No action from any user is needed.                                                  |
| Scope                  | Changed | The impact can reach other components beyond the vulnerable one.                    |
| Confidentiality impact | High    | Serious or total effect on the secrecy of data.                                     |
| Integrity impact       | High    | Serious or total effect on the trustworthiness of data.                             |
| Availability impact    | High    | Serious or total effect on availability.                                            |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.65159 (65.2% probability)

Percentile

99.3%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog

Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability

Added to the catalog

Aug 21, 2025

Federal due date

Sep 11, 2025

### CISA assessment as of Nov 27, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation

Recorded by CISA as active

Automatable

yes

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-787](https://cwe.mitre.org/data/definitions/787.html) Out-of-bounds Write

## Affected products

Products listed in the CVE record, as the CNA published them.

- Apple iOS and iPadOS

  - affected: before 15.8.5
  - affected: before 16.7.12
  - affected: before 18.6.2
- Apple iPadOS

  - affected: before 17.7.10
- Apple macOS

  - affected: before 13.7.8
  - affected: before 14.7.8
  - affected: before 15.6.1

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [support.apple.com/en-us/124925](https://support.apple.com/en-us/124925)
- [support.apple.com/en-us/124926](https://support.apple.com/en-us/124926)
- [support.apple.com/en-us/124927](https://support.apple.com/en-us/124927)
- [support.apple.com/en-us/124928](https://support.apple.com/en-us/124928)
- [support.apple.com/en-us/124929](https://support.apple.com/en-us/124929)
- [support.apple.com/en-us/125141](https://support.apple.com/en-us/125141)
- [support.apple.com/en-us/125142](https://support.apple.com/en-us/125142)
- [github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md](https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md)
- [seclists.org/fulldisclosure/2025/Sep/52](http://seclists.org/fulldisclosure/2025/Sep/52)
- [seclists.org/fulldisclosure/2025/Sep/14](http://seclists.org/fulldisclosure/2025/Sep/14)
- [seclists.org/fulldisclosure/2025/Sep/10](http://seclists.org/fulldisclosure/2025/Sep/10)

## Timeline

1. ID reserved Apr 16, 2025
2. Added to CISA KEV Aug 21, 2025
3. Record published Aug 21, 2025
4. Record last updated Apr 2, 2026

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:02 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)