CVE-2026-74427

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-15. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.8
EG Score
9.8(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eec89c5f8e1adc1de4824042ef75f62aed804153
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a
generic

afs: Fix netns teardown to cancel the preallocation charger - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/47694fbc9d24ab6bf210f91e8efe06a10a478064

Vendor Advisories for CVE-2026-74427(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 44× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-21 05:35 UTCGHSA enrichment
  2. 2026-08-21 01:19 UTCEG score recompute
  3. 2026-08-21 01:19 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 21:03 UTCGHSA enrichment
  6. 2026-08-20 16:47 UTCGHSA enrichment
  7. 2026-08-20 12:22 UTCGHSA enrichment
  8. 2026-08-20 08:06 UTCGHSA enrichment
  9. 2026-08-20 03:50 UTCGHSA enrichment
  10. 2026-08-19 23:33 UTCGHSA enrichment
  11. 2026-08-19 19:17 UTCEG score recompute
  12. 2026-08-19 19:17 UTCGHSA enrichment
  13. 2026-08-19 17:04 UTCEPSS rescore
  14. 2026-08-19 14:54 UTCGHSA enrichment
  15. 2026-08-19 10:38 UTCGHSA enrichment
  16. 2026-08-19 06:20 UTCGHSA enrichment
  17. 2026-08-19 01:53 UTCGHSA enrichment
  18. 2026-08-18 21:37 UTCGHSA enrichment
  19. 2026-08-18 17:00 UTCEG score recompute
  20. 2026-08-18 17:00 UTCGHSA enrichment
  21. 2026-08-18 13:49 UTCEPSS rescore
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 12:24 UTCGHSA enrichment
  24. 2026-08-18 08:02 UTCGHSA enrichment
  25. 2026-08-18 03:45 UTCGHSA enrichment
Show 19 more
  1. 2026-08-17 23:29 UTCGHSA enrichment
  2. 2026-08-17 19:13 UTCGHSA enrichment
  3. 2026-08-17 14:57 UTCEG score recompute
  4. 2026-08-17 14:57 UTCGHSA enrichment
  5. 2026-08-17 13:47 UTCEPSS rescore
  6. 2026-08-17 10:41 UTCEG score recompute
  7. 2026-08-17 10:41 UTCGHSA enrichment
  8. 2026-08-17 06:25 UTCEG score recompute
  9. 2026-08-17 06:25 UTCGHSA enrichment
  10. 2026-08-17 05:55 UTCEG score recompute▲ 9.80
  11. 2026-08-17 05:55 UTCGHSA enrichment
  12. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  13. 2026-08-17 05:25 UTCEG score recompute
  14. 2026-08-17 05:25 UTCGHSA enrichment
  15. 2026-08-17 05:24 UTCMITRE cvelistV5
  16. 2026-08-16 02:15 UTCEPSS rescore
  17. 2026-08-15 06:23 UTCNVD update
  18. 2026-08-15 06:13 UTCEG score recompute
  19. 2026-08-15 06:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74427?
CVE-2026-74427 is a critical vulnerability published on August 15, 2026. 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…
When was CVE-2026-74427 disclosed?
CVE-2026-74427 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74427 actively exploited?
CVE-2026-74427 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.1% of all scored CVEs.
What is the CVSS score of CVE-2026-74427?
CVE-2026-74427 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-74427?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74427, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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