CVE-2026-68447

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: 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:

drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size

CRIU checkpoint copies the MQD control stack using cp_hqd_cntl_stack_size from hardware without bounding it to the allocated BO region. If the HW field is larger than the queue's control stack allocation, memcpy reads past the BO into adjacent GTT memory and can leak kernel data to userspace.

Store the page-aligned control stack BO size in mqd_manager and clamp checkpoint copies and reported checkpoint sizes to min(cp_hqd_cntl_stack_size, mm->ctl_stack_size). Apply the same bound for multi-XCC v9.4.3 checkpoint layout.

(cherry picked from commit 6c2abd0ec09e86c6323010673766f76050e28aa3)

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
No patch confirmed yet.
generic

drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a0d87beb2660a5098b2b0ecdc1e96810a9074ea9
generic

drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/426ffae6ecc7ec77d32bf8be065c21a1b881b084

Vendor Advisories for CVE-2026-68447(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 36× in last 7d / 40× 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 17:56 UTCGHSA enrichment
  2. 2026-08-20 06:17 UTCGHSA enrichment
  3. 2026-08-19 18:37 UTCEG score recompute
  4. 2026-08-19 18:37 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-19 06:46 UTCGHSA enrichment
  7. 2026-08-18 19:07 UTCGHSA enrichment
  8. 2026-08-18 07:25 UTCEG score recompute
  9. 2026-08-18 07:25 UTCGHSA enrichment
  10. 2026-08-18 07:03 UTCEG score recompute
  11. 2026-08-18 07:03 UTCGHSA enrichment
  12. 2026-08-18 06:53 UTCGHSA enrichment
  13. 2026-08-17 19:15 UTCGHSA enrichment
  14. 2026-08-17 06:31 UTCEG score recompute
  15. 2026-08-17 06:30 UTCGHSA enrichment
  16. 2026-08-17 05:35 UTCEG score recompute
  17. 2026-08-17 05:35 UTCGHSA enrichment
  18. 2026-08-16 21:33 UTCEG score recompute
  19. 2026-08-16 21:33 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 09:54 UTCEG score recompute
  23. 2026-08-16 09:54 UTCGHSA enrichment
  24. 2026-08-15 22:17 UTCGHSA enrichment
  25. 2026-08-15 10:39 UTCEG score recompute
Show 15 more
  1. 2026-08-15 10:39 UTCGHSA enrichment
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-14 23:01 UTCGHSA enrichment
  4. 2026-08-14 11:23 UTCEG score recompute
  5. 2026-08-14 11:23 UTCGHSA enrichment
  6. 2026-08-13 23:45 UTCEG score recompute
  7. 2026-08-13 23:45 UTCGHSA enrichment
  8. 2026-08-13 23:03 UTCEG score recompute▲ 7.10
  9. 2026-08-13 23:03 UTCGHSA enrichment
  10. 2026-08-13 23:03 UTCMITRE cvelistV5CVSS v3 → 7.1 · severity → HIGH
  11. 2026-08-13 22:00 UTCEPSS rescore
  12. 2026-08-12 13:51 UTCEPSS rescore
  13. 2026-08-12 01:20 UTCNVD update
  14. 2026-08-12 01:05 UTCEG score recompute
  15. 2026-08-12 01:05 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68447?
CVE-2026-68447 is a high vulnerability published on August 12, 2026. In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size CRIU checkpoint copies the MQD control stack using cphqdcntlstacksize from hardware without bounding it to the allocated BO region. If the HW field is larger than…
When was CVE-2026-68447 disclosed?
CVE-2026-68447 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68447 actively exploited?
CVE-2026-68447 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 98.6% of all scored CVEs.
What is the CVSS score of CVE-2026-68447?
CVE-2026-68447 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-68447?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68447, 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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