Is CVE-2025-68353 in the CISA KEV catalog?

No. CVE-2025-68353 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2025-68353?

CVE-2025-68353 has an EPSS score of 0.16% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-68353?

Upgrade linux on debian unstable to 6.18.3-1 or later. Fixes are available for 61 affected products.

CVE & CISA-KEV Catalog

CVE-2025-68353

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: net: vxlan: prevent NULL deref in vxlan_xmit_one Neither sock4 nor sock6 pointers are guaranteed to be non-NULL in vxlan_xmit_one, e.g. if the iface is brought down. This can lead to the following NULL dereference: BUG: kernel NULL pointer dereference, address: 0000000000000010 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:vxlan_xmit_one+0xbb3/0x1580 Call Trace: vxlan_xmit+0x429/0x610 dev_hard_start_xmit+0x55/0xa0 __dev_queue_xmit+0x6d0/0x7f0 ip_finish_output2+0x24b/0x590 ip_output+0x63/0x110 Mentioned commits changed the code path in vxlan_xmit_one and as a side effect the sock4/6 pointer validity checks in vxlan(6)_get_route were lost. Fix this by adding back checks. Since both commits being fixed were released in the same version (v6.7) and are strongly related, bundle the fixes in a single commit.

How to fix

Remediation Available

linuxDebian

Fixed in:6.18.3-1CVE-2025-68353

linuxUbuntu

Fixed in:6.17.0-22.22USN-8177-1

linux-awsUbuntu

Fixed in:6.17.0-1012.12USN-8183-2

linux-aws-6.17Ubuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-2

linux-azureUbuntu

Fixed in:6.17.0-1013.13USN-8245-1

linux-azure-6.17Ubuntu

Fixed in:6.17.0-1013.13~24.04.1USN-8245-1

linux-gcpUbuntu

Fixed in:6.17.0-1012.12USN-8183-1

linux-gcp-6.17Ubuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-1

linux-hwe-6.17Ubuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

linux-image-6.17.0-1010-realtimeUbuntu

Fixed in:6.17.0-1010.11~24.04.1USN-8177-2

Fixed in:6.17.0-1010.11USN-8177-1

linux-image-6.17.0-1011-oracleUbuntu

Fixed in:6.17.0-1011.11~24.04.1USN-8183-2

Fixed in:6.17.0-1011.11USN-8183-2

linux-image-6.17.0-1011-oracle-64kUbuntu

Fixed in:6.17.0-1011.11~24.04.1USN-8183-2

Fixed in:6.17.0-1011.11USN-8183-2

linux-image-6.17.0-1012-awsUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-2

Fixed in:6.17.0-1012.12USN-8183-2

linux-image-6.17.0-1012-aws-64kUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-2

Fixed in:6.17.0-1012.12USN-8183-2

linux-image-6.17.0-1012-gcpUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-1

Fixed in:6.17.0-1012.12USN-8183-1

linux-image-6.17.0-1012-gcp-64kUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-1

Fixed in:6.17.0-1012.12USN-8183-1

linux-image-6.17.0-1013-azureUbuntu

Fixed in:6.17.0-1013.13~24.04.1USN-8245-1

Fixed in:6.17.0-1013.13USN-8245-1

linux-image-6.17.0-1014-raspiUbuntu

Fixed in:6.17.0-1014.14USN-8257-1

linux-image-6.17.0-1020-oemUbuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-image-6.17.0-22-genericUbuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

Fixed in:6.17.0-22.22USN-8177-1

linux-image-6.17.0-22-generic-64kUbuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

Fixed in:6.17.0-22.22USN-8177-1

linux-image-awsUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-2

Fixed in:6.17.0-1012.12USN-8183-2

linux-image-aws-6.17Ubuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-2

Fixed in:6.17.0-1012.12USN-8183-2

linux-image-aws-64kUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-2

Fixed in:6.17.0-1012.12USN-8183-2

linux-image-aws-64k-6.17Ubuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-2

Fixed in:6.17.0-1012.12USN-8183-2

linux-image-azureUbuntu

Fixed in:6.17.0-1013.13~24.04.1USN-8245-1

Fixed in:6.17.0-1013.13USN-8245-1

linux-image-azure-6.17Ubuntu

Fixed in:6.17.0-1013.13~24.04.1USN-8245-1

Fixed in:6.17.0-1013.13USN-8245-1

linux-image-gcpUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-1

Fixed in:6.17.0-1012.12USN-8183-1

linux-image-gcp-6.17Ubuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-1

Fixed in:6.17.0-1012.12USN-8183-1

linux-image-gcp-64kUbuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-1

Fixed in:6.17.0-1012.12USN-8183-1

linux-image-gcp-64k-6.17Ubuntu

Fixed in:6.17.0-1012.12~24.04.1USN-8183-1

Fixed in:6.17.0-1012.12USN-8183-1

linux-image-genericUbuntu

Fixed in:6.17.0-22.22USN-8177-1

linux-image-generic-6.17Ubuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

Fixed in:6.17.0-22.22USN-8177-1

linux-image-generic-64kUbuntu

Fixed in:6.17.0-22.22USN-8177-1

linux-image-generic-64k-6.17Ubuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

Fixed in:6.17.0-22.22USN-8177-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

linux-image-oem-24.04Ubuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-image-oem-24.04aUbuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-image-oem-24.04bUbuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-image-oem-24.04cUbuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-image-oem-24.04dUbuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-image-oem-6.17Ubuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-image-oracleUbuntu

Fixed in:6.17.0-1011.11~24.04.1USN-8183-2

Fixed in:6.17.0-1011.11USN-8183-2

linux-image-oracle-6.17Ubuntu

Fixed in:6.17.0-1011.11~24.04.1USN-8183-2

Fixed in:6.17.0-1011.11USN-8183-2

linux-image-oracle-64kUbuntu

Fixed in:6.17.0-1011.11~24.04.1USN-8183-2

Fixed in:6.17.0-1011.11USN-8183-2

linux-image-oracle-64k-6.17Ubuntu

Fixed in:6.17.0-1011.11~24.04.1USN-8183-2

Fixed in:6.17.0-1011.11USN-8183-2

linux-image-raspiUbuntu

Fixed in:6.17.0-1014.14USN-8257-1

linux-image-raspi-6.17Ubuntu

Fixed in:6.17.0-1014.14USN-8257-1

linux-image-realtimeUbuntu

Fixed in:6.17.0-1010.11USN-8177-1

linux-image-realtime-6.17Ubuntu

Fixed in:6.17.0-1010.11~24.04.1USN-8177-2

Fixed in:6.17.0-1010.11USN-8177-1

linux-image-realtime-hwe-24.04Ubuntu

Fixed in:6.17.0-1010.11~24.04.1USN-8177-2

linux-image-virtualUbuntu

Fixed in:6.17.0-22.22USN-8177-1

linux-image-virtual-6.17Ubuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

Fixed in:6.17.0-22.22USN-8177-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.17.0-22.22~24.04.1USN-8183-2

linux-oem-6.17Ubuntu

Fixed in:6.17.0-1020.20USN-8245-1

linux-oracleUbuntu

Fixed in:6.17.0-1011.11USN-8183-2

linux-oracle-6.17Ubuntu

Fixed in:6.17.0-1011.11~24.04.1USN-8183-2

linux-raspiUbuntu

Fixed in:6.17.0-1014.14USN-8257-1

linux-realtimeUbuntu

Fixed in:6.17.0-1010.11USN-8177-1

linux-realtime-6.17Ubuntu

Fixed in:6.17.0-1010.11~24.04.1USN-8177-2

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

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references2

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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 2025-12-29.