CVE-2025-43520

CVE Enrichment

CVSS: 5.5 MEDIUM
EPSS: 0.43%
EPSS Percentile: 36.84%
CISA KEV: YES — Known Exploited Vulnerability

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 13-Dec-2025 04:15
Last Modified: 07-Oct-2026 18:10
EPSS Date: 2026-11-03
CWE: CWE-120

CVSS Vector


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

CISA KEV Details

Date Added: 2026-03-20
Remediation Due: 2026-04-03
Known Ransomware Campaign Use: Unknown
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.
Notes: https://support.apple.com/en-us/125632 ; https://support.apple.com/en-us/125633 ; https://support.apple.com/en-us/125634 ; https://support.apple.com/en-us/125635 ; https://support.apple.com/en-us/125636 ; https://support.apple.com/en-us/125637 ; https://support.apple.com/en-us/125638 ; https://support.apple.com/en-us/125639 ; https://nvd.nist.gov/vuln/detail/CVE-2025-43520

CNA Products / Version Status

Apple · iOS and iPadOS Source: CNA · [email protected]
Default status: unknown

0 ≤ version < 18.7.2 — affected (custom)
0 ≤ version < 26.1 — affected (custom)
Apple · macOS Source: CNA · [email protected]
Default status: unknown

0 ≤ version < 14.8.2 — affected (custom)
0 ≤ version < 15.7.2 — affected (custom)
0 ≤ version < 26.1 — affected (custom)
Apple · tvOS Source: CNA · [email protected]
Default status: unknown

0 ≤ version < 26.1 — affected (custom)
Apple · visionOS Source: CNA · [email protected]
Default status: unknown

0 ≤ version < 26.1 — affected (custom)
Apple · watchOS Source: CNA · [email protected]
Default status: unknown

0 ≤ version < 26.1 — affected (custom)

Affected Products / Versions

apple / ipados Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 18.7.2
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple / ipados Source: NVD CPE · affected
Version / affected range: 26.0
cpe:2.3:o:apple:ipados:26.0:*:*:*:*:*:*:*
apple / iphone_os Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 18.7.2
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple / iphone_os Source: NVD CPE · affected
Version / affected range: 26.0
cpe:2.3:o:apple:iphone_os:26.0:*:*:*:*:*:*:*
apple / macos Source: NVD CPE · affected
Version / affected range: * · from (inclusive) 14.0 · before (exclusive) 14.8.2
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple / macos Source: NVD CPE · affected
Version / affected range: * · from (inclusive) 15.0 · before (exclusive) 15.7.2
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple / macos Source: NVD CPE · affected
Version / affected range: 26.0
cpe:2.3:o:apple:macos:26.0:*:*:*:*:*:*:*
apple / tvos Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 26.1
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple / visionos Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 26.1
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
apple / watchos Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 26.1
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References

Last enrichment sync: 04-Nov-2026 19:52
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (2)

CVE-2025-43529, CVE-2026-20700, CVE-2025-14174, CVE-2025-43510, CVE-2025-43520. Full device data collected Sekoia Details APT29-Linked Watering-Hole Campaign Using Patched Mobile Exploits
CVE-2025-43529, CVE-2026-20700, CVE-2025-14174, CVE-2025-43510, and CVE-2025-43520 (in iOS 18.5). Sekoia Links Watering-Hole Campaign Using N-Day Exploits to APT29

CVE (7)

Malware (1)

Threat Actors (3)

MITRE ATT&CK (15)

Vendors (3)

Products (9)

Tools (1)

Industries (4)

Countries (6)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.