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CVE-2021-47352 is an improper input-validation vulnerability in the Linux kernel virtio-net driver. The driver did not validate a used-length value received from a potentially untrusted virtio device before using it. An invalid or maliciously crafted length can cause data corruption or data loss. Upstream remediation adds validation of the used length.
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Patch, then assume compromise.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel virtio-net input-validation flaw.
Missing validation of used length in the Linux virtio-net driver.
A Linux kernel virtio-net vulnerability addressed by validating the used length.
A Linux kernel virtio-net vulnerability involving insufficient validation of the used length; it was resolved upstream and subsequently addressed through Red Hat Enterprise Linux 8 advisories.
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.