CVE-2026-46068

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

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

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 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: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx

The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order 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.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
0.2%
EPSS %ILE
6th
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
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). 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 (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

May 27, 2026

Last Modified

June 24, 2026

Advisory Details (5)

Auto-updated Jun 24, 2026
Patch available.
Web page

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb
Web page

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c
Web page

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e
Web page

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d
Web page

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5

Vendor Advisories for CVE-2026-46068(2)

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

Patch Availability(21)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-09-14ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-14ubuntu
linuxKernel @ 6.6.141 (fixes >=4.2.0)—osv

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 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (358 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.88-1~bpo12+1 (21 versions)
  • every version up to 6.12.88-1: fixed in 6.12.88-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (135 versions)
  • every version up to 7.0.4-1: fixed in 7.0.4-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(20)

Data Freshness Timeline

(refreshed 10× in last 7d / 30× 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 283 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 183 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-18 03:37 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-17 13:30 UTCEG score recompute
  6. 2026-10-17 13:30 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  8. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  9. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-12 16:03 UTCEG score recompute
  13. 2026-10-11 19:46 UTCEG score recompute
  14. 2026-10-11 17:00 UTCEG score recompute
  15. 2026-10-11 14:25 UTCEG score recompute
  16. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-03 17:21 UTCOSV refresh
  25. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 75 more
  1. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  7. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-09-14 07:56 UTCEG score recompute
  10. 2026-09-14 07:56 UTCVendor advisory
  11. 2026-09-14 07:56 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-09-13 03:39 UTCOSV refresh
  14. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  26. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  27. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  28. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  29. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  30. 2026-08-25 05:22 UTCEG score recompute
  31. 2026-08-25 05:22 UTCVendor advisory
  32. 2026-08-25 05:21 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  33. 2026-08-23 15:07 UTCEG score recompute
  34. 2026-08-23 15:07 UTCVendor advisory
  35. 2026-08-23 15:07 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  36. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  37. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  38. 2026-08-21 20:39 UTCVendor advisory
  39. 2026-08-21 20:39 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  40. 2026-08-21 01:38 UTCEG score recompute
  41. 2026-08-21 01:38 UTCVendor advisory
  42. 2026-08-21 01:38 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  43. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-08-20 11:24 UTCEG score recompute
  45. 2026-08-20 11:24 UTCVendor advisory
  46. 2026-08-20 11:23 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  47. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  48. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  49. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-08-17 09:17 UTCVendor advisory
  51. 2026-08-17 09:17 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  52. 2026-08-16 15:28 UTCEG score recompute
  53. 2026-08-16 15:28 UTCVendor advisory
  54. 2026-08-16 15:28 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-08-16 02:50 UTCEG score recompute
  57. 2026-08-16 02:50 UTCVendor advisory
  58. 2026-08-16 02:50 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-15 02:27 UTCEG score recompute
  61. 2026-08-15 02:27 UTCVendor advisory
  62. 2026-08-15 02:27 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  64. 2026-08-14 13:57 UTCVendor advisory
  65. 2026-08-14 13:57 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-08-14 01:28 UTCEG score recompute
  67. 2026-08-14 01:28 UTCVendor advisory
  68. 2026-08-14 01:28 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  69. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  70. 2026-08-13 05:53 UTCVendor advisory
  71. 2026-08-13 05:53 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  72. 2026-08-12 16:49 UTCEG score recompute
  73. 2026-08-12 16:49 UTCVendor advisory
  74. 2026-08-12 16:49 UTCGHSA enrichmentGHSA-55j4-rv4x-vqmx · GitHub severity HIGH · GitHub CVSS 7.8
  75. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile

Frequently asked(5)

What is CVE-2026-46068?
CVE-2026-46068 is a high-severity vulnerability; its CVE record was published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix bounce buffer leaks in nx842crypto{alloc,free}_ctx The bounce buffers are allocated with getfreepages() using BOUNCEBUFFERORDER (order 2 = 4 pages), but both the allocation error path and nx842cryptofreectx()…
When was the CVE record for CVE-2026-46068 published?
The CVE record for CVE-2026-46068 was published on May 27, 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 June 24, 2026; the record at its source may have been updated since.
Is CVE-2026-46068 actively exploited?
CVE-2026-46068 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-46068?
CVE-2026-46068 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-46068?
A fix for CVE-2026-46068 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-46068 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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