CVE-2026-68385

CRITICALPre-NVD 9.89.8
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-10. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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:

s390/checksum: Fix csum_partial() without vector facility

Currently csum_partial() calls csum_copy() with copy=false and dst=NULL. On machines without the vector facility, csum_copy() falls back to cksm(dst, ...), causing the checksum to be calculated from address zero instead of the source buffer.

The VX implementation already checksums data loaded from src. Make the fallback do the same by passing src to cksm().

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%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 17, 2026

Advisory Details (4)

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

s390/checksum: Fix csum_partial() without vector facility - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/898bb2814f38399108bdd2113f38d97383a7036a
generic

s390/checksum: Fix csum_partial() without vector facility - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5fc0a2a6eeb99cac991242bb48796c7749ce3261
generic

s390/checksum: Fix csum_partial() without vector facility - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4bb06b60d982355e22647b3d12d6619419f8c1fa
generic

s390/checksum: Fix csum_partial() without vector facility - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1d9a2f01b3c4e5c88e06b2db4b5460c2ec884722

Vendor Advisories for CVE-2026-68385(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 59× in last 7d / 74× 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 07:17 UTCGHSA enrichment
  2. 2026-08-21 03:19 UTCGHSA enrichment
  3. 2026-08-20 23:17 UTCEG score recompute
  4. 2026-08-20 23:17 UTCGHSA enrichment
  5. 2026-08-20 22:56 UTCEPSS rescore
  6. 2026-08-20 19:19 UTCGHSA enrichment
  7. 2026-08-20 15:19 UTCGHSA enrichment
  8. 2026-08-20 11:20 UTCGHSA enrichment
  9. 2026-08-20 07:21 UTCGHSA enrichment
  10. 2026-08-20 03:22 UTCGHSA enrichment
  11. 2026-08-19 23:22 UTCGHSA enrichment
  12. 2026-08-19 19:23 UTCEG score recompute
  13. 2026-08-19 19:23 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 15:20 UTCGHSA enrichment
  16. 2026-08-19 11:16 UTCGHSA enrichment
  17. 2026-08-19 07:17 UTCGHSA enrichment
  18. 2026-08-19 03:18 UTCGHSA enrichment
  19. 2026-08-18 23:18 UTCGHSA enrichment
  20. 2026-08-18 19:17 UTCGHSA enrichment
  21. 2026-08-18 15:18 UTCEG score recompute
  22. 2026-08-18 15:18 UTCGHSA enrichment
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 13:49 UTCEPSS rescore
  25. 2026-08-18 11:17 UTCGHSA enrichment
Show 49 more
  1. 2026-08-18 07:18 UTCGHSA enrichment
  2. 2026-08-18 03:19 UTCGHSA enrichment
  3. 2026-08-17 23:18 UTCGHSA enrichment
  4. 2026-08-17 19:19 UTCGHSA enrichment
  5. 2026-08-17 14:29 UTCEG score recompute
  6. 2026-08-17 14:29 UTCGHSA enrichment
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 10:30 UTCGHSA enrichment
  9. 2026-08-17 06:32 UTCEG score recompute
  10. 2026-08-17 06:31 UTCGHSA enrichment
  11. 2026-08-17 05:36 UTCEG score recompute
  12. 2026-08-17 05:36 UTCGHSA enrichment
  13. 2026-08-17 03:24 UTCGHSA enrichment
  14. 2026-08-16 23:25 UTCGHSA enrichment
  15. 2026-08-16 19:26 UTCGHSA enrichment
  16. 2026-08-16 15:23 UTCEG score recompute
  17. 2026-08-16 15:23 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 11:24 UTCGHSA enrichment
  20. 2026-08-16 07:26 UTCGHSA enrichment
  21. 2026-08-16 03:27 UTCEG score recompute
  22. 2026-08-16 03:27 UTCGHSA enrichment
  23. 2026-08-15 23:29 UTCGHSA enrichment
  24. 2026-08-15 19:30 UTCGHSA enrichment
  25. 2026-08-15 15:31 UTCGHSA enrichment
  26. 2026-08-15 11:32 UTCGHSA enrichment
  27. 2026-08-15 07:33 UTCGHSA enrichment
  28. 2026-08-15 03:34 UTCEG score recompute
  29. 2026-08-15 03:34 UTCGHSA enrichment
  30. 2026-08-15 01:30 UTCEPSS rescore
  31. 2026-08-14 23:35 UTCGHSA enrichment
  32. 2026-08-14 19:37 UTCGHSA enrichment
  33. 2026-08-14 15:38 UTCGHSA enrichment
  34. 2026-08-14 11:39 UTCGHSA enrichment
  35. 2026-08-14 07:41 UTCGHSA enrichment
  36. 2026-08-14 03:42 UTCEG score recompute
  37. 2026-08-14 03:42 UTCGHSA enrichment
  38. 2026-08-13 23:44 UTCEG score recompute
  39. 2026-08-13 23:44 UTCGHSA enrichment
  40. 2026-08-13 23:03 UTCEG score recompute 9.80
  41. 2026-08-13 23:03 UTCGHSA enrichment
  42. 2026-08-13 23:03 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  43. 2026-08-13 22:00 UTCEPSS rescore
  44. 2026-08-13 08:15 UTCEG score recompute
  45. 2026-08-13 08:15 UTCGHSA enrichment
  46. 2026-08-12 13:51 UTCEPSS rescore
  47. 2026-08-10 13:24 UTCNVD update
  48. 2026-08-10 12:18 UTCEG score recompute
  49. 2026-08-10 12:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68385?
CVE-2026-68385 is a critical vulnerability published on August 10, 2026. In the Linux kernel, the following vulnerability has been resolved: s390/checksum: Fix csum_partial() without vector facility Currently csumpartial() calls csumcopy() with copy=false and dst=NULL. On machines without the vector facility, csum_copy() falls back to cksm(dst, ...), causing the…
When was CVE-2026-68385 disclosed?
CVE-2026-68385 was first published in the National Vulnerability Database on August 10, 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-2026-68385 actively exploited?
CVE-2026-68385 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 59.4% of all scored CVEs.
What is the CVSS score of CVE-2026-68385?
CVE-2026-68385 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-68385?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68385, 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

Explore the affected products and dependency analysis for CVE-2026-68385

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