CVE-2026-68427

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-19). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 10, 2026

Last Modified

October 19, 2026

Advisory Details (5)

Auto-updated Aug 14, 2026
Patch available.
Web page

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
Web page

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
Web page

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
Web page

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
Web page

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.

Patch Availability(8)

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (56 versions)
  • every version up to 6.1.187-1: fixed in 6.1.187-1
—
linux-6.126.12.100-1~deb12u1
  • every version up to 6.12.101-1~deb12u1: fixed in 6.12.101-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (32 versions)
  • every version up to 6.12.101-1: fixed in 6.12.101-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (161 versions)
  • every version up to 7.1.6-1: fixed in 7.1.6-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(8)

Data Freshness Timeline

(refreshed 22× in last 7d / 79× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 225 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 125 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 22:30 UTCEG score recompute
  2. 2026-10-19 22:30 UTCVendor advisory
  3. 2026-10-19 22:30 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  4. 2026-10-19 21:24 UTCEG score recompute
  5. 2026-10-19 21:24 UTCVendor advisory
  6. 2026-10-19 21:24 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-10-18 03:19 UTCEG score recompute
  9. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-16 17:32 UTCEG score recompute
  11. 2026-10-16 17:32 UTCVendor advisory
  12. 2026-10-16 17:32 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-16 16:06 UTCEG score recompute
  15. 2026-10-16 16:06 UTCVendor advisory
  16. 2026-10-16 16:05 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-10-13 10:06 UTCEG score recompute
  21. 2026-10-13 10:06 UTCVendor advisory
  22. 2026-10-13 10:06 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  23. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  24. 2026-10-12 15:45 UTCEG score recompute
  25. 2026-10-11 19:30 UTCEG score recompute
Show 75 more
  1. 2026-10-11 16:45 UTCEG score recompute
  2. 2026-10-11 14:06 UTCEG score recompute
  3. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  4. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  5. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  6. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  7. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  8. 2026-10-06 18:22 UTCEG score recompute
  9. 2026-10-06 18:22 UTCVendor advisory
  10. 2026-10-06 18:22 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  11. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-10-05 18:23 UTCEG score recompute
  13. 2026-10-05 18:23 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-04 22:50 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-04 04:27 UTCEG score recompute
  18. 2026-10-04 04:27 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  19. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-03 00:53 UTCEG score recompute
  21. 2026-10-03 00:53 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-10-02 09:19 UTCEG score recompute
  24. 2026-10-02 09:19 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  26. 2026-10-01 11:12 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  27. 2026-09-30 22:36 UTCEG score recompute
  28. 2026-09-30 22:36 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  29. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  30. 2026-09-29 05:23 UTCEG score recompute
  31. 2026-09-29 05:23 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  32. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  33. 2026-09-28 02:24 UTCEG score recompute
  34. 2026-09-28 02:24 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  35. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  36. 2026-09-27 12:47 UTCEG score recompute
  37. 2026-09-27 12:47 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  38. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-09-25 04:01 UTCEG score recompute
  40. 2026-09-25 04:01 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  41. 2026-09-24 02:10 UTCEG score recompute
  42. 2026-09-24 02:10 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  43. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-09-23 13:40 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  45. 2026-09-22 23:53 UTCEG score recompute
  46. 2026-09-22 23:53 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  47. 2026-09-22 10:58 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  48. 2026-09-21 22:12 UTCEG score recompute
  49. 2026-09-21 22:12 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  50. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-09-21 01:58 UTCEG score recompute
  52. 2026-09-21 01:58 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-09-20 10:48 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-09-19 19:59 UTCEG score recompute
  56. 2026-09-19 19:59 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-09-19 06:21 UTCEG score recompute
  58. 2026-09-19 06:20 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-09-18 17:18 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  61. 2026-09-18 03:25 UTCEG score recompute
  62. 2026-09-18 03:25 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-09-17 14:54 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  64. 2026-09-17 00:45 UTCEG score recompute
  65. 2026-09-17 00:45 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  67. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  68. 2026-09-16 02:32 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  69. 2026-09-15 13:46 UTCEG score recompute
  70. 2026-09-15 13:46 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  71. 2026-09-15 00:29 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  72. 2026-09-14 11:33 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  73. 2026-09-13 23:03 UTCEG score recompute
  74. 2026-09-13 23:03 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8
  75. 2026-09-13 10:32 UTCGHSA enrichmentGHSA-8v73-w5j7-p4x2 · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-68427?
CVE-2026-68427 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-68427 published?
The CVE record for CVE-2026-68427 was published on August 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 19, 2026; the record at its source may have been updated since.
Is CVE-2026-68427 actively exploited?
CVE-2026-68427 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-68427?
CVE-2026-68427 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-68427?
A fix for CVE-2026-68427 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68427 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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