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CVE-2025-37789 is an improper input-validation vulnerability in the Linux kernel Open vSwitch implementation. The Open vSwitch set() action can access the length of a nested netlink key attribute before confirming that the supplied data is large enough to contain a netlink header. Validation must occur before accessing the attribute length.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Referenced by the TuxCare CentOS 8.5 security advisory; no vulnerability details are provided.
A Linux kernel vulnerability in net/openvswitch involving nested key length validation in the set() action.
A Linux kernel Open vSwitch vulnerability involving improper nested key length validation in the set() action.
A Linux kernel Open vSwitch vulnerability involving inadequate nested-key length validation in the set action.
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.