CVE-2026-68427

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. 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:

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings

__host1x_bo_unpin() drops the last reference to the mapping and frees it, so we can't dereference mapping afterwards. The cache itself outlives the mapping, so use the cache local variable instead.

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
3%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 19, 2026

Advisory Details (5)

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

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b773faa32b0a98c3eb2b50d96de631681e5d1157
generic

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/abeff53233b984571b87582bb588b4b38ef4ea50
generic

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5f4de3c717d34a24d555af581947742980778c02
generic

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5b7e5f84d3d4cea10c3764d2da274810a7934228
generic

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/266cddf7bd0f6c79b6c0633aef742a22bf70265b

Vendor Advisories for CVE-2026-68427(2)

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 42× in last 7d / 48× 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 18:50 UTCGHSA enrichment
  2. 2026-08-20 06:20 UTCGHSA enrichment
  3. 2026-08-19 17:49 UTCEG score recompute
  4. 2026-08-19 17:49 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-19 16:53 UTCEG score recompute
  7. 2026-08-19 16:53 UTCGHSA enrichment
  8. 2026-08-19 08:28 UTCGHSA enrichment
  9. 2026-08-18 19:56 UTCEG score recompute
  10. 2026-08-18 19:56 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 07:25 UTCEG score recompute
  14. 2026-08-18 07:25 UTCGHSA enrichment
  15. 2026-08-18 07:03 UTCEG score recompute
  16. 2026-08-18 07:03 UTCGHSA enrichment
  17. 2026-08-17 19:18 UTCEG score recompute
  18. 2026-08-17 19:18 UTCGHSA enrichment
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 06:31 UTCEG score recompute
  21. 2026-08-17 06:31 UTCGHSA enrichment
  22. 2026-08-17 05:35 UTCEG score recompute
  23. 2026-08-17 05:35 UTCGHSA enrichment
  24. 2026-08-17 02:50 UTCEG score recompute
  25. 2026-08-17 02:50 UTCGHSA enrichment
Show 23 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 14:19 UTCEG score recompute
  4. 2026-08-16 14:19 UTCGHSA enrichment
  5. 2026-08-16 01:48 UTCGHSA enrichment
  6. 2026-08-15 13:17 UTCEG score recompute
  7. 2026-08-15 13:17 UTCGHSA enrichment
  8. 2026-08-15 01:30 UTCEPSS rescore
  9. 2026-08-15 00:45 UTCGHSA enrichment
  10. 2026-08-14 12:14 UTCEG score recompute
  11. 2026-08-14 12:14 UTCGHSA enrichment
  12. 2026-08-13 23:44 UTCEG score recompute
  13. 2026-08-13 23:44 UTCGHSA enrichment
  14. 2026-08-13 23:03 UTCEG score recompute 7.80
  15. 2026-08-13 23:03 UTCGHSA enrichment
  16. 2026-08-13 23:03 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  17. 2026-08-13 22:00 UTCEPSS rescore
  18. 2026-08-13 17:39 UTCEG score recompute
  19. 2026-08-13 17:39 UTCGHSA enrichment
  20. 2026-08-12 13:51 UTCEPSS rescore
  21. 2026-08-10 13:24 UTCNVD update
  22. 2026-08-10 12:17 UTCEG score recompute
  23. 2026-08-10 12:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68427?
CVE-2026-68427 is a high vulnerability published on August 10, 2026. In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fix use-after-free in host1xboclearcachedmappings host1xbounpin() drops the last reference to the mapping and frees it, so we can't dereference mapping afterwards. The cache itself outlives the mapping, so use the…
When was CVE-2026-68427 disclosed?
CVE-2026-68427 was first published in the National Vulnerability Database on August 10, 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-2026-68427 actively exploited?
CVE-2026-68427 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 97.4% of all scored CVEs.
What is the CVSS score of CVE-2026-68427?
CVE-2026-68427 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-68427?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68427, 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-2026-68427

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