CVE & CISA-KEV Catalog

CVE-2025-40236

UNSCORED
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: virtio-net: zero unused hash fields When GSO tunnel is negotiated virtio_net_hdr_tnl_from_skb() tries to initialize the tunnel metadata but forget to zero unused rxhash fields. This may leak information to another side. Fixing this by zeroing the unused hash fields.

How to fix

Remediation Available
linuxDebian
Fixed in:6.17.6-1CVE-2025-40236
linuxUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-awsUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-azureUbuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-gcpUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-6.17.0-1006-realtimeUbuntu
Fixed in:6.17.0-1006.7USN-8029-1
linux-image-6.17.0-1007-awsUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1007-aws-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1007-gcpUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-6.17.0-1007-gcp-64kUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-6.17.0-1007-oracleUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1007-oracle-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1008-azureUbuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-image-6.17.0-1008-raspiUbuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-image-6.17.0-1011-oemUbuntu
Fixed in:6.17.0-1011.11USN-8048-1
linux-image-6.17.0-14-genericUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-6.17.0-14-generic-64kUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-awsUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-aws-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-aws-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-aws-64k-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-azureUbuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-image-azure-6.17Ubuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-image-gcpUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-gcp-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-gcp-64kUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-gcp-64k-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-genericUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-generic-6.17Ubuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-generic-64kUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-generic-64k-6.17Ubuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-oem-6.17Ubuntu
Fixed in:6.17.0-1011.11USN-8048-1
linux-image-oracleUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-oracle-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-oracle-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-oracle-64k-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-raspiUbuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-image-raspi-6.17Ubuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-image-realtimeUbuntu
Fixed in:6.17.0-1006.7USN-8029-1
linux-image-realtime-6.17Ubuntu
Fixed in:6.17.0-1006.7USN-8029-1
linux-image-virtualUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-virtual-6.17Ubuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-oem-6.17Ubuntu
Fixed in:6.17.0-1011.11USN-8048-1
linux-oracleUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-raspiUbuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-realtimeUbuntu
Fixed in:6.17.0-1006.7USN-8029-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.16%probability of exploitation in 30 days
6thpercentile

Low risk: more likely to be exploited than 6% of all known CVEs.

References

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-04.