CVE-2026-68446

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: 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:

drm/vmwgfx: Validate vmw_surface_metadata::array_size

This field comes from userspace and should be validated against specific limits depending on which Shader Model (SM) is available.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 19, 2026

Advisory Details (5)

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

drm/vmwgfx: Validate vmw_surface_metadata::array_size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b1379f0c42b88cb60b9f3757eb5d1e73ad460ed8
generic

drm/vmwgfx: Validate vmw_surface_metadata::array_size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a4f55260f7f7d4dc4d0ee55063dfb0c457b77991
generic

drm/vmwgfx: Validate vmw_surface_metadata::array_size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/71779fe8bf403a9b3e28dc59229fa556db32d35d
generic

drm/vmwgfx: Validate vmw_surface_metadata::array_size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6910ccaf41678f7761ba2e57d72b77d056320b4d
generic

drm/vmwgfx: Validate vmw_surface_metadata::array_size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5ff94e1279176b539d451e3e754fdcbd1a8d520a

Vendor Advisories for CVE-2026-68446(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 35× in last 7d / 45× 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 04:45 UTCEG score recompute
  2. 2026-08-21 04:45 UTCVendor advisory
  3. 2026-08-21 04:45 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 17:01 UTCGHSA enrichment
  6. 2026-08-20 05:17 UTCGHSA enrichment
  7. 2026-08-19 17:33 UTCEG score recompute
  8. 2026-08-19 17:33 UTCGHSA enrichment
  9. 2026-08-19 17:04 UTCEPSS rescore
  10. 2026-08-19 16:47 UTCEG score recompute
  11. 2026-08-19 16:47 UTCGHSA enrichment
  12. 2026-08-19 06:26 UTCGHSA enrichment
  13. 2026-08-18 18:43 UTCEG score recompute
  14. 2026-08-18 18:43 UTCGHSA enrichment
  15. 2026-08-18 13:49 UTCEPSS rescore
  16. 2026-08-18 13:49 UTCEPSS rescore
  17. 2026-08-18 06:59 UTCGHSA enrichment
  18. 2026-08-17 19:15 UTCGHSA enrichment
  19. 2026-08-17 06:31 UTCEG score recompute
  20. 2026-08-17 06:30 UTCGHSA enrichment
  21. 2026-08-17 05:35 UTCEG score recompute
  22. 2026-08-17 05:35 UTCGHSA enrichment
  23. 2026-08-16 22:07 UTCEG score recompute
  24. 2026-08-16 22:07 UTCGHSA enrichment
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 20 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 10:23 UTCEG score recompute
  3. 2026-08-16 10:23 UTCGHSA enrichment
  4. 2026-08-15 22:40 UTCGHSA enrichment
  5. 2026-08-15 10:56 UTCEG score recompute
  6. 2026-08-15 10:56 UTCGHSA enrichment
  7. 2026-08-15 01:30 UTCEPSS rescore
  8. 2026-08-14 23:12 UTCGHSA enrichment
  9. 2026-08-14 11:28 UTCEG score recompute
  10. 2026-08-14 11:28 UTCGHSA enrichment
  11. 2026-08-13 23:45 UTCEG score recompute
  12. 2026-08-13 23:45 UTCGHSA enrichment
  13. 2026-08-13 23:03 UTCEG score recompute 7.80
  14. 2026-08-13 23:03 UTCGHSA enrichment
  15. 2026-08-13 23:03 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-12 13:51 UTCEPSS rescore
  18. 2026-08-12 00:19 UTCNVD update
  19. 2026-08-12 00:15 UTCEG score recompute
  20. 2026-08-12 00:15 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68446?
CVE-2026-68446 is a high vulnerability published on August 12, 2026. In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate vmwsurfacemetadata::array_size This field comes from userspace and should be validated against specific limits depending on which Shader Model (SM) is available.
When was CVE-2026-68446 disclosed?
CVE-2026-68446 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68446 actively exploited?
CVE-2026-68446 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-68446?
CVE-2026-68446 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-68446?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68446, 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-2026-68446

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