CVE-2026-63865

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-19. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks

bpf_lsm_task_to_inode() is called under rcu_read_lock() and bpf_lsm_inet_conn_established() is called from softirq context, so neither hook can be used by sleepable LSM programs.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

July 19, 2026

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Jul 20, 2026
No patch confirmed yet.
generic

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f0fc2a9828171205244a28013f02889f50b71c9f
generic

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/beaf0e96b1da74549a6cabd040f9667d83b2e97e
generic

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/989f1b93907de1753a814996222da375f07e579b
generic

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/452a927cddcd67478d030e646f41cb904a93156f
generic

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/281f2a214565a5cbf8b7355a65738d80bd19b8c5
generic

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/26b380a3ca0b605fd8860995ed6a208f276dd316
generic

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0d918263c9bfc86078edb2e2f7302a0c6ce42b7c

Vendor Advisories for CVE-2026-63865(1)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-18ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-18ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-18ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-18ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-18ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-18ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-18ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-18ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-18ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-18ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-18ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-18ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-18ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-18ubuntu

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (140 versions)7.0.10-1—

All Vendor Advisories

(25)

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 15× in last 7d / 88× 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.

Showing the most recent 100 of 335 total refreshes for this CVE.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-63865?
CVE-2026-63865 is a high vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: bpf: Drop tasktoinode and inetconnestablished from lsm sleepable hooks bpflsmtasktoinode() is called under rcureadlock() and bpflsminetconnestablished() is called from softirq context, so neither hook can be used by sleepable LSM…
When was CVE-2026-63865 disclosed?
CVE-2026-63865 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63865 actively exploited?
CVE-2026-63865 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 97.2% of all scored CVEs.
What is the CVSS score of CVE-2026-63865?
CVE-2026-63865 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-63865?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63865, 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

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