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Vulnerabilities

Security fix · CVE-2025-43533

The issue was addressed with improved bounds checks.

Published Dec 17, 2025 · catalog updated Apr 2, 2026 · Apple watchOS

Last checked Oct 30, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-43533 is not in CISA KEV. FIRST estimates a 30.00% chance of exploitation in the next 30 days. Check whether you run Apple watchOS.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
30.00%
Remediation
Version ranges on file
Affected products
vendor Apple watchOS 0 <26.2

The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.2 and iPadOS 26.2, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. A malicious HID device may cause an unexpected process crash.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Apple watchOS 0 <26.20 <26.2

How to fix CVE-2025-43533

  • Upgrade

    CVE-2025-43533 lists a fix boundary at 26.2. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 0 <26.2

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-43533 is not in CISA KEV. FIRST estimates a 30.00% chance of exploitation in the next 30 days. Check whether you run Apple watchOS.

Which versions are affected?

Compare what you have installed with Apple watchOS 0 <26.2 0 <26.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 30.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 17, 2025 · EUVD

    Detected

    The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.2 and iPadOS 26.2, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. A malicious HID device may cause an unexpected process crash.

  2. Apr 2, 2026 · EUVD

    Updated

    The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.2 and iPadOS 26.2, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. A malicious HID device may cause an unexpected process crash.

Sources

  • EUVDVulnerability recordEUVD-2025-203980

    The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.2 and iPadOS 26.2, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. A malicious HID device may cause an unexpected

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Apr 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • EUVDOct 30, 2026