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CVE-2026-74427

CRITICALCVSS 9.8/10EPSS 0.16%

Last modified

CVE-2026-74427 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing the charger. (This was found by AI review).. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing the charger. (This was found by AI review).

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
0.16%

6.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

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

VendorProductVersions
LinuxLinux>= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9; >= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1; >= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a; >= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 85d5fb80fe4f0cc836b6df83f26de204fe102ff7; >= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < a33975ff2b6ea47b8f29956403374b1cdd057539; >= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < b83ecf80e28afb7b6595ba79932e77ca68a5a83d; >= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < eec89c5f8e1adc1de4824042ef75f62aed804153; >= 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 47694fbc9d24ab6bf210f91e8efe06a10a478064
LinuxLinux4.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-74427?
In the Linux kernel, the following vulnerability has been resolved: afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing the charger. (This was found by AI review).
How severe is CVE-2026-74427?
CVE-2026-74427 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-74427?
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