Out-of-bounds write in Apple Wi‑Fi allowing kernel code execution
CVE-2026-28819 is an Apple Wi‑Fi vulnerability caused by an out-of-bounds write. Apple states the issue was addressed with improved bounds checking. Successful exploitation may allow an app to execute arbitrary code with kernel privileges. The vulnerability affects Apple platforms including iOS 18.7.9 and iPadOS 18.7.9 prior to the fix, as well as macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, and macOS Tahoe 26.5 prior to the fix.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A privilege escalation vulnerability in Wi-Fi that may allow an app to execute arbitrary code with kernel privileges.
A use-after-free vulnerability in macOS Tahoe that may allow an attacker in a privileged network position to perform denial-of-service using crafted Wi-Fi packets.
A critical macOS Sonoma out-of-bounds write vulnerability that may allow an app to execute arbitrary code with kernel privileges.
An out-of-bounds write vulnerability in macOS Sequoia that may allow an app to execute arbitrary code with kernel privileges.
The version that knows your environment.
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.