CVE-2025-43520

CWE-120 — Classic Buffer Overflow14 documents6 sources
5.5
CVSS
MEDIUM
EPSS0.3%(51th)
CISA KEV
CISA 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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages6 packages

▶NVDapple/macos14.0 — 14.8.2+2
▶NVDapple/ipados< 18.7.2+1
▶NVDapple/tvos< 26.1
▶NVDapple/watchos< 26.1
▶NVDapple/visionos< 26.1
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.
NVD ↗MITRE ↗

🔴Vulnerability Details

2
CVEList
CVE-2025-43520: A memory corruption issue was addressed with improved memory handling↗2025-12-12
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VulnCheck
Apple Multiple Products Classic Buffer Overflow Vulnerability↗2025
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📋Vendor Advisories

9
CISA
Apple Multiple Products Classic Buffer Overflow Vulnerability↗2026-03-20
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Apple
CVE-2025-43520: iOS 18.7.2 and iPadOS 18.7.2↗2025-11-05
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Apple
CVE-2025-43520: macOS Sequoia 15.7.2↗2025-11-03
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Apple
CVE-2025-43520: tvOS 26.1↗2025-11-03
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Apple
CVE-2025-43520: visionOS 26.1↗2025-11-03
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🕵️Threat Intelligence

2
Bleepingcomputer
Apple expands iOS 18 updates to more iPhones to block DarkSword attacks↗2026-04-01
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Bleepingcomputer
New DarkSword iOS exploit used in infostealer attack on iPhones↗2026-03-18
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