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CVE-2023-52620 is a flaw in the Linux kernel Netfilter nf_tables API that allowed userspace to specify timeout parameters for anonymous sets. Anonymous sets are not intended to support userspace-configured timeouts, and those parameters have no supported userspace use. The fix rejects timeout parameters for anonymous sets in the nf_tables API, preventing unsupported state and resulting unexpected behavior.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel nf_tables anonymous-set timeout handling vulnerability.
Linux kernel nftables flaw related to timeouts on anonymous sets.
Linux kernel nftables anonymous-set timeout handling vulnerability.
Linux kernel Netfilter nftables anonymous-set timeout handling flaw.
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.