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CVE-2026-53224 is an out-of-bounds read vulnerability in the Linux kernel SCTP implementation's COOKIE_ECHO cookie parsing. The SCTP cookie unpacking path did not verify that an embedded INIT chunk was large enough to contain a complete INIT header, and did not completely validate the combined embedded-INIT and raw address-list lengths against the remaining cookie payload. Subsequent INIT and address-parameter parsing could therefore access data beyond the cookie boundary. Address-list parsing also lacked adequate checks that parameter headers and payloads were fully present before they were processed.
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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.
48 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel SCTP COOKIE_ECHO-processing vulnerability caused by inadequate validation of cached peer INIT chunk length.
Linux kernel SCTP vulnerability caused by insufficient validation of cached peer INIT chunk length during COOKIE_ECHO processing.
Linux kernel SCTP COOKIE_ECHO processing flaw involving validation of a cached peer INIT chunk length.
An SCTP COOKIE_ECHO-processing flaw involving validation of the cached peer INIT chunk length in the SUSE Linux Enterprise Kernel.
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.