CVE-2026-68466

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: 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:

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout

lpc32xx_xmit_dma() waits for the DMA completion callback but ignores wait_for_completion_timeout(). A timed out DMA transfer is therefore unmapped and reported as successful to the NAND read/write path.

Return -ETIMEDOUT when the completion wait expires. Terminate the DMA channel before unmapping the scatterlist so the timed out transfer cannot continue to access the buffer after the error is returned.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
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

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cf7258f57d18026b8f77c0e80ff1805e9caf7250
generic

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cb2031f8b226efbd13735c07b075e5f14ec11f6d
generic

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c367af37ce7238c96c6071337149099467160746
generic

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bd4a622786f92e1f183f7557ab89dd32891cef60
generic

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8f5c3ee53a5dc1a0f7cfd780485f2c8b5d17f91d
generic

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/623c4d8e740debb4af28981e3d4e209f9d0260a4
generic

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/307e4f4c1d4e1575b3495ecc6e41aa2adc40f491
generic

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/17a8ce84964f243c8f89dc7353ac7e8d3137bc74

Vendor Advisories for CVE-2026-68466(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 29× in last 7d / 29× 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 23:01 UTCEG score recompute
  2. 2026-08-20 23:01 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 10:23 UTCGHSA enrichment
  5. 2026-08-19 21:45 UTCEG score recompute
  6. 2026-08-19 21:45 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 09:06 UTCGHSA enrichment
  9. 2026-08-18 20:26 UTCEG score recompute
  10. 2026-08-18 20:26 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 07:48 UTCGHSA enrichment
  14. 2026-08-17 19:09 UTCEG score recompute
  15. 2026-08-17 19:09 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 06:30 UTCEG score recompute
  18. 2026-08-17 06:30 UTCGHSA enrichment
  19. 2026-08-17 06:01 UTCEG score recompute▲ 8.80
  20. 2026-08-17 06:01 UTCGHSA enrichment
  21. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  22. 2026-08-17 05:35 UTCEG score recompute
  23. 2026-08-17 05:35 UTCGHSA enrichment
  24. 2026-08-17 05:24 UTCMITRE cvelistV5
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 4 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-15 06:20 UTCNVD update
  3. 2026-08-15 06:20 UTCEG score recompute
  4. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68466?
CVE-2026-68466 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout lpc32xxxmitdma() waits for the DMA completion callback but ignores waitforcompletion_timeout(). A timed out DMA transfer is therefore unmapped and reported as…
When was CVE-2026-68466 disclosed?
CVE-2026-68466 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-2026-68466 actively exploited?
CVE-2026-68466 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 97.0% of all scored CVEs.
What is the CVSS score of CVE-2026-68466?
CVE-2026-68466 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-68466?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68466, 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.

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