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CVE-2026-80646

HIGHCVSS 7.5/10EPSS 0.18%

Last modified

CVE-2026-80646 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: ipv6: guard against possible NULL deref in __in6_dev_stats_get() dev_get_by_index_rcu() could return NULL if the original physical device is unregistered. Found by Sashiko.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: guard against possible NULL deref in __in6_dev_stats_get() dev_get_by_index_rcu() could return NULL if the original physical device is unregistered. Found by Sashiko.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
0.18%

7.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < a23f2c68c6635e41404f189f8f7ae910738cebdb; >= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < e14db43677946bf2095febd294bb3c13ab375ab7; >= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < 1a4adfbeb47a212a64539137411f1ca168474d33; >= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < 1e3db30a88815bae6e9d5db6f64ac735e615a07e; >= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < 952426a83ca75cea25c09d58944abafaa3ebd242; >= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < 0db1949084e85a72d174a7dea3259b94fe5a9305; >= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < fc920c0659cdea5afd8721c1155a51564859e075; >= e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f, < 507541c2a8eeb76c02bd2511958f73a8cfa3e1bc; a24963500a4ec921ce9c2597e0a584e44513afae; >= 4.19.291, < 4.20
LinuxLinux5.2

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80646?
In the Linux kernel, the following vulnerability has been resolved: ipv6: guard against possible NULL deref in __in6_dev_stats_get() dev_get_by_index_rcu() could return NULL if the original physical device is unregistered. Found by Sashiko.
How severe is CVE-2026-80646?
CVE-2026-80646 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-80646?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST