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CVE-2026-53182 is an integer-overflow vulnerability in the Linux kernel Wi-Fi nl80211 EMA Reduced Neighbor Report (RNR) element parser. The nl80211_parse_rnr_elems() routine records the number of parsed nested EMA RNR elements in the 8-bit cfg80211_rnr_elems::cnt field and uses that count to calculate a flexible-array allocation size. An oversized nested element list can cause the count to exceed the representable range, producing an incorrect allocation size. The fix rejects further elements when the count reaches 255, preserving consistency between parser input limits and the destination structure.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel nl80211 Wi-Fi flaw caused by acceptance of oversized EMA RNR lists.
Linux kernel nl80211 Wi-Fi oversized EMA RNR list validation flaw.
A Linux kernel nl80211 Wi-Fi flaw involving acceptance of oversized EMA RNR lists.
An nl80211 Wi-Fi issue caused by acceptance of oversized EMA reduced-neighbor-report lists.
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.