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CVE-2026-28985 is a denial-of-service vulnerability in Apple mDNSResponder caused by a null pointer dereference. The flaw was addressed through improved input validation. Successful exploitation may allow an attacker on the local network to trigger a crash or otherwise force unexpected termination of the affected service or system component handling the malformed network input. Apple lists the issue as fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, and tvOS 26.5.
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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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A local network denial-of-service vulnerability affecting mDNSResponder.
A null pointer dereference vulnerability in macOS Tahoe that may allow an attacker on the local network to cause a denial-of-service.
A null pointer dereference vulnerability in Apple TV software that could allow a local-network attacker to cause denial of service.
A null pointer dereference vulnerability that could allow a local network attacker to cause 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.