CVE-2026-72426

HIGHPre-NVD 8.48.4—
EchelonGraph scoreHIGH confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: 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:

bpf: Preserve pointer spill metadata during half-slot cleanup

__clean_func_state() cleans dead stack slots in 4-byte halves. When the high half of a STACK_SPILL slot is dead and the low half remains live, cleanup converts the live low half to STACK_MISC or STACK_ZERO and clears the saved spilled_ptr metadata.

That conversion is safe only for scalar spills. For a pointer spill, this metadata clear lets a later 32-bit fill from the still-live half avoid the normal non-scalar register-fill check and be treated as an ordinary scalar stack read.

Leave non-scalar spill slots intact in this half-live shape. This is conservative for pruning and preserves the existing check_stack_read_fixed_off() rejection path for partial fills from pointer spills.

CVSS v3
8.4
EG Score
8.4(high)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (2)

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

bpf: Preserve pointer spill metadata during half-slot cleanup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3a354149bceacadbcf7d7b4766f5ef26a85892ab
generic

bpf: Preserve pointer spill metadata during half-slot cleanup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0f9278b22cda6fd2525049930157b79b4036b4ef

Vendor Advisories for CVE-2026-72426(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 28× in last 7d / 28× 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. 2026-08-20 23:08 UTCEG score recompute
  2. 2026-08-20 23:08 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 10:29 UTCGHSA enrichment
  5. 2026-08-19 21:49 UTCEG score recompute
  6. 2026-08-19 21:49 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 09:09 UTCGHSA enrichment
  9. 2026-08-18 20:29 UTCGHSA enrichment
  10. 2026-08-18 07:49 UTCGHSA enrichment
  11. 2026-08-17 19:09 UTCEG score recompute
  12. 2026-08-17 19:09 UTCGHSA enrichment
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 06:28 UTCEG score recompute
  15. 2026-08-17 06:28 UTCGHSA enrichment
  16. 2026-08-17 05:57 UTCEG score recompute▲ 8.40
  17. 2026-08-17 05:57 UTCGHSA enrichment
  18. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.4 · severity → HIGH
  19. 2026-08-17 05:29 UTCEG score recompute
  20. 2026-08-17 05:29 UTCGHSA enrichment
  21. 2026-08-17 05:24 UTCMITRE cvelistV5
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 02:15 UTCEPSS rescore
  25. 2026-08-15 06:33 UTCGHSA enrichment
Show 3 more
  1. 2026-08-15 06:23 UTCNVD update
  2. 2026-08-15 06:04 UTCEG score recompute
  3. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72426?
CVE-2026-72426 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer spill metadata during half-slot cleanup cleanfuncstate() cleans dead stack slots in 4-byte halves. When the high half of a STACK_SPILL slot is dead and the low half remains live, cleanup converts the live low…
When was CVE-2026-72426 disclosed?
CVE-2026-72426 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-2026-72426 actively exploited?
CVE-2026-72426 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 92.2% of all scored CVEs.
What is the CVSS score of CVE-2026-72426?
CVE-2026-72426 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-72426?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72426, 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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