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CVE-2026-28936 is a denial-of-service vulnerability in Apple CoreServices affecting multiple Apple operating systems, including iOS, iPadOS, macOS, and visionOS. The flaw can be triggered when the system processes a maliciously crafted file, resulting in unexpected application termination. Apple indicates the issue was addressed through improved checks, which suggests insufficient validation during file processing within the affected component. Publicly available information does not identify the specific vulnerable function or file format.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A file parsing vulnerability in CoreServices that may lead to unexpected app termination.
A macOS Tahoe vulnerability where processing a maliciously crafted file may lead to unexpected app termination.
A macOS Sonoma vulnerability where a maliciously crafted file may cause unexpected app termination.
A file parsing vulnerability that could cause unexpected app termination.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.