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CVE-2023-52620 is a flaw in the Linux kernel Netfilter nf_tables API handling of anonymous sets. Userspace could specify timeout parameters for anonymous sets even though this configuration is unsupported and not intended for userspace use. The correction in the nf_tables API rejects timeout parameters for anonymous sets, preventing invalid set configuration and associated unexpected behavior.
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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.
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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.
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.