CVE-2026-72373

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: 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 missing NULL pointer check in afs_break_some_callbacks()

Fix afs_break_some_callbacks() to check to see if afs_lookup_volume_rcu() returned NULL (e.g. the specified volume is unknown).

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (4)

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

afs: Fix missing NULL pointer check in afs_break_some_callbacks() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e3e59ff22a0de01ed0cf3a3e25558811abc3b70a
generic

afs: Fix missing NULL pointer check in afs_break_some_callbacks() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a99a617701186dc68c7b330d35fc2253f48e2ab2
generic

afs: Fix missing NULL pointer check in afs_break_some_callbacks() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/794a01110390c1b76f59ece773fb0fbfd89c6f5c
generic

afs: Fix missing NULL pointer check in afs_break_some_callbacks() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5492799ec5d27be3bd454dcaf046bc7054f637ae

Vendor Advisories for CVE-2026-72373(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 32× in last 7d / 32× 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 02:55 UTCEG score recompute
  2. 2026-08-21 02:55 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 15:29 UTCGHSA enrichment
  5. 2026-08-20 04:05 UTCEG score recompute
  6. 2026-08-20 04:05 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 16:41 UTCGHSA enrichment
  9. 2026-08-19 05:16 UTCGHSA enrichment
  10. 2026-08-18 17:50 UTCEG score recompute
  11. 2026-08-18 17:50 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 06:22 UTCGHSA enrichment
  15. 2026-08-17 18:59 UTCEG score recompute
  16. 2026-08-17 18:59 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 06:29 UTCEG score recompute
  19. 2026-08-17 06:29 UTCGHSA enrichment
  20. 2026-08-17 05:58 UTCEG score recompute▲ 7.50
  21. 2026-08-17 05:58 UTCGHSA enrichment
  22. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  23. 2026-08-17 05:29 UTCEG score recompute
  24. 2026-08-17 05:29 UTCGHSA enrichment
  25. 2026-08-17 05:25 UTCMITRE cvelistV5
Show 7 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 02:15 UTCEPSS rescore
  4. 2026-08-15 06:35 UTCGHSA enrichment
  5. 2026-08-15 06:23 UTCNVD update
  6. 2026-08-15 06:06 UTCEG score recompute
  7. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72373?
CVE-2026-72373 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: afs: Fix missing NULL pointer check in afsbreaksome_callbacks() Fix afsbreaksomecallbacks() to check to see if afslookupvolumercu() returned NULL (e.g. the specified volume is unknown).
When was CVE-2026-72373 disclosed?
CVE-2026-72373 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-2026-72373 actively exploited?
CVE-2026-72373 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.8% of all scored CVEs.
What is the CVSS score of CVE-2026-72373?
CVE-2026-72373 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-72373?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72373, 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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