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CVE-2026-28886 is a null pointer dereference vulnerability in Apple CoreUtils affecting multiple Apple operating systems, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. The flaw was addressed through improved input validation. Under certain conditions, malformed or unexpected network-originated input can cause CoreUtils to dereference a null pointer, resulting in a crash of the affected component or service. Apple describes the attack scenario as requiring an attacker to be in a privileged network position.
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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.
If you can’t patch tonight, do this now.
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.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A null pointer dereference vulnerability that may allow a privileged network-position user to cause denial of service.
A medium-severity privacy/app sandbox issue that could allow enumeration of installed apps, enabling device profiling.
A null pointer dereference vulnerability in macOS Sequoia that could allow a user in a privileged network position to cause a denial-of-service.
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.