CVE-2026-68446

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 2026-08-12. 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:

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
7.8HIGHmedium 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
1st
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 12, 2026

Last Modified

October 19, 2026

Advisory Details (5)

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

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

https://git.kernel.org/stable/c/b1379f0c42b88cb60b9f3757eb5d1e73ad460ed8
Web page

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

https://git.kernel.org/stable/c/a4f55260f7f7d4dc4d0ee55063dfb0c457b77991
Web page

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

https://git.kernel.org/stable/c/71779fe8bf403a9b3e28dc59229fa556db32d35d
Web page

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

https://git.kernel.org/stable/c/6910ccaf41678f7761ba2e57d72b77d056320b4d
Web page

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(2)

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

Patch Availability(15)

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.

Additional Vendor Advisories

(15)

Data Freshness Timeline

(refreshed 21× in last 7d / 106× 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 299 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 199 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-55wx-2w5g-rcrg · 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-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-18 03:19 UTCEG score recompute
  10. 2026-10-16 17:32 UTCEG score recompute
  11. 2026-10-16 17:32 UTCVendor advisory
  12. 2026-10-16 17:31 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-10-16 16:05 UTCEG score recompute
  14. 2026-10-16 16:05 UTCVendor advisory
  15. 2026-10-16 16:05 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  16. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-13 10:06 UTCEG score recompute
  20. 2026-10-13 10:06 UTCVendor advisory
  21. 2026-10-13 10:06 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-12 15:45 UTCEG score recompute
  24. 2026-10-11 19:30 UTCEG score recompute
  25. 2026-10-11 16:45 UTCEG score recompute
Show 75 more
  1. 2026-10-11 14:06 UTCEG score recompute
  2. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-07 05:27 UTCVendor advisory
  8. 2026-10-07 05:27 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-06 17:33 UTCEG score recompute
  10. 2026-10-06 17:33 UTCVendor advisory
  11. 2026-10-06 17:33 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-05 14:50 UTCEG score recompute
  15. 2026-10-05 14:50 UTCVendor advisory
  16. 2026-10-05 14:49 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-04 22:33 UTCVendor advisory
  19. 2026-10-04 22:33 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  20. 2026-10-04 08:14 UTCVendor advisory
  21. 2026-10-04 08:14 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-03 20:25 UTCEG score recompute
  23. 2026-10-03 20:25 UTCVendor advisory
  24. 2026-10-03 20:25 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  26. 2026-10-02 22:14 UTCEG score recompute
  27. 2026-10-02 22:14 UTCVendor advisory
  28. 2026-10-02 22:14 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  29. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  30. 2026-10-02 08:24 UTCEG score recompute
  31. 2026-10-02 08:24 UTCVendor advisory
  32. 2026-10-02 08:24 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  33. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  34. 2026-10-01 09:57 UTCVendor advisory
  35. 2026-10-01 09:57 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  36. 2026-09-30 21:59 UTCEG score recompute
  37. 2026-09-30 21:59 UTCVendor advisory
  38. 2026-09-30 21:59 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  39. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  40. 2026-09-29 04:54 UTCEG score recompute
  41. 2026-09-29 04:54 UTCVendor advisory
  42. 2026-09-29 04:54 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  43. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  44. 2026-09-28 13:19 UTCVendor advisory
  45. 2026-09-28 13:19 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  46. 2026-09-28 01:35 UTCEG score recompute
  47. 2026-09-28 01:35 UTCVendor advisory
  48. 2026-09-28 01:35 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  49. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  50. 2026-09-27 09:58 UTCEG score recompute
  51. 2026-09-27 09:58 UTCVendor advisory
  52. 2026-09-27 09:58 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  54. 2026-09-25 03:44 UTCEG score recompute
  55. 2026-09-25 03:44 UTCVendor advisory
  56. 2026-09-25 03:44 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-09-24 11:18 UTCVendor advisory
  58. 2026-09-24 11:18 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-09-23 23:34 UTCEG score recompute
  60. 2026-09-23 23:34 UTCVendor advisory
  61. 2026-09-23 23:34 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  62. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-09-23 11:35 UTCVendor advisory
  64. 2026-09-23 11:35 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  65. 2026-09-22 23:51 UTCEG score recompute
  66. 2026-09-22 23:51 UTCVendor advisory
  67. 2026-09-22 23:51 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  68. 2026-09-22 12:08 UTCVendor advisory
  69. 2026-09-22 12:08 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  70. 2026-09-22 00:19 UTCEG score recompute
  71. 2026-09-22 00:19 UTCVendor advisory
  72. 2026-09-22 00:19 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8
  73. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  74. 2026-09-21 12:20 UTCVendor advisory
  75. 2026-09-21 12:20 UTCGHSA enrichmentGHSA-55wx-2w5g-rcrg · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-68446?
CVE-2026-68446 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-68446 published?
The CVE record for CVE-2026-68446 was published on August 12, 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-2026-68446 actively exploited?
CVE-2026-68446 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-68446?
CVE-2026-68446 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-2026-68446?
A fix for CVE-2026-68446 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68446 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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