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Vulnerability IntelligenceCVE-2026-28955

CVE-2026-28955

HIGH8.8

The issue was addressed with improved memory handling

Published May 11, 2026

Modified 1 months ago

Fix available

Details

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.

Affected Packages

macOS

macOS 26

Fixed in:

26.5

References

https://support.apple.com/en-us/127110

https://support.apple.com/en-us/127111

https://support.apple.com/en-us/127115

https://support.apple.com/en-us/127118

https://support.apple.com/en-us/127119

https://support.apple.com/en-us/127120

https://support.apple.com/en-us/127121

https://www.cve.org/CVERecord?id=CVE-2026-28955

https://www.zerodayinitiative.com/advisories/ZDI-26-312/

CVSS Analysis

CVSS v3.1

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems

Timeline

PublishedMay 11, 2026

ModifiedMay 22, 2026

CVE-2026-28955 | Mondoo Vulnerability Intelligence