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CVE-2026-53224 is an out-of-bounds read vulnerability in Linux kernel SCTP COOKIE_ECHO cookie parsing. The SCTP cookie-unpacking path accepted an embedded INIT chunk whose declared length fit within the remaining cookie payload but did not verify that it met the minimum size of an INIT header. Subsequent INIT processing could therefore access parameters from a truncated chunk. The parser also insufficiently validated the raw address-list length and individual address-parameter header and payload lengths. In particular, with SCTP cookie authentication disabled, an oversized raw address-list length can make address conversion read past the cookie boundary. The fix enforces a minimum embedded INIT size, ensures the INIT chunk plus raw address list fit within the cookie payload, and validates address parameter headers and payloads before parsing.
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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.
89 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by Ubuntu Security Notice USN-8748-1.
A vulnerability addressed by Ubuntu Security Notice USN-8725-1; the supplied content does not describe the underlying flaw.
A vulnerability addressed by Ubuntu USN-8715-1; no technical flaw description is provided.
A vulnerability addressed by Ubuntu Security Notice USN-8714-1; the content provides no technical flaw description.
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.