9.8

CVE-2026-74427: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-74427DEBIAN-CVE-2026-74427
Published 15-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-74427 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.76% chance of exploitation in the next 30 days, higher than 54.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.76%
0%100%
Low · +0.35 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 15 · Related 15
USN-8781-1USN-8816-1USN-8816-2USN-8816-3USN-8816-4USN-8875-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

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).

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.76%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.35 pp

From 0.40% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.76%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu168 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-34.34
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1013.13
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9 | ≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1 | ≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a | ≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 85d5fb80fe4f0cc836b6df83f26de204fe102ff7 | ≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < a33975ff2b6ea47b8f29956403374b1cdd057539 | ≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < b83ecf80e28afb7b6595ba79932e77ca68a5a83d | ≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < eec89c5f8e1adc1de4824042ef75f62aed804153 | ≥ 00e907127e6f86d0f9b122d9b4347a8aa09a8b61, < 47694fbc9d24ab6bf210f91e8efe06a10a478064 | 4.9

3 vendors · 170 products

References

27 links
Show all 27 references