CVE-2025-43300
CVE-2025-43300 is a critical-severity vulnerability in Apple Ipados with a CVSS 3.x base score of 10.0. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-08-21). The underlying weakness is classified as CWE-787.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- EPSS exploit prediction: 20% (97th percentile)
- Actively exploited: Yes — listed in CISA KEV (added 2025-08-21)
- EU (EUVD) id: EUVD-2025-25409
- EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-08-21)
- Weakness: CWE-787
- Affected product: Apple Ipados
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-43300?
- 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.
- How severe is CVE-2025-43300?
- CVE-2025-43300 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-43300 being actively exploited?
- Yes. CVE-2025-43300 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-08-21, which means active exploitation has been confirmed. It should be prioritised for remediation.
- What products are affected by CVE-2025-43300?
- CVE-2025-43300 primarily affects Apple Ipados. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-43300?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
- Does CVE-2025-43300 have an EU (EUVD) identifier?
- Yes. CVE-2025-43300 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25409. It is also flagged as exploited in the EUVD (since 2025-08-21).
- When was CVE-2025-43300 published?
- CVE-2025-43300 was published on 2025-08-21 and last updated on 2026-06-17.
References
- https://support.apple.com/en-us/124925
- https://support.apple.com/en-us/124926
- https://support.apple.com/en-us/124927
- https://support.apple.com/en-us/124928
- https://support.apple.com/en-us/124929
- https://support.apple.com/en-us/125141
- https://support.apple.com/en-us/125142
- http://seclists.org/fulldisclosure/2025/Sep/10
- http://seclists.org/fulldisclosure/2025/Sep/14
- http://seclists.org/fulldisclosure/2025/Sep/52
- https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md
- https://github.com/cisagov/vulnrichment/issues/201
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300
Affected products (3)
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
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