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CVE-2025-43520

64
FAUCET Score

CVE-2025-43520 is a memory corruption vulnerability affecting multiple Apple operating systems, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. A malicious application can exploit this flaw to cause system termination or write kernel memory. Rated with a CVSS score of 7.1 (HIGH), it has a local attack vector, low attack complexity, and requires low privileges, posing a significant risk to system integrity and availability. This vulnerability is actively exploited, as confirmed by its inclusion in the CISA KEV catalog and mentions of an associated iOS exploit chain. Despite no public exploit code, it has generated substantial community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 18.7.2CPE matchmatch criteria
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
26.0CPE matchmatch criteria
cpe:2.3:o:apple:ipados:26.0:*:*:*:*:*:*:*
< 18.7.2CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
26.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:26.0:*:*:*:*:*:*:*
>= 14.0, < 14.8.2CPE matchmatch criteria
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Added to KEV · Mar 20, 2026
This CVE's current EPSS score of 0.0041 is in the 88th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

cloud.google.com / blog/topics/threat-intelligence/darksword-ios-exploit-chain
Technical Description
cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
support.apple.com / en-us/125632
Release NotesVendor Advisory
support.apple.com / en-us/125633
Release NotesVendor Advisory
support.apple.com / en-us/125634
Release NotesVendor Advisory
support.apple.com / en-us/125635
Release NotesVendor Advisory
support.apple.com / en-us/125636
Release NotesVendor Advisory
support.apple.com / en-us/125637
Release NotesVendor Advisory
support.apple.com / en-us/125638
Release NotesVendor Advisory
support.apple.com / en-us/125639
Release NotesVendor Advisory