CVE & CISA-KEV Catalog

CVE-2025-68188

HIGH
7.8
CVSS v3
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() Use RCU to avoid a pair of atomic operations and a potential UAF on dst_dev()->flags.

How to fix

Remediation Available
linuxDebian
Fixed in:6.12.63-1CVE-2025-68188
Fixed in:6.17.8-1CVE-2025-68188
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 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.17%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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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 2025-12-18.