CVE-2025-40088

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2025-10-30. the CNA's CVSS baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 5 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp()

The hfsplus_strcasecmp() logic can trigger the issue:

[ 117.317703][ T9855] ================================================================== [ 117.318353][ T9855] BUG: KASAN: slab-out-of-bounds in hfsplus_strcasecmp+0x1bc/0x490 [ 117.318991][ T9855] Read of size 2 at addr ffff88802160f40c by task repro/9855 [ 117.319577][ T9855] [ 117.319773][ T9855] CPU: 0 UID: 0 PID: 9855 Comm: repro Not tainted 6.17.0-rc6 #33 PREEMPT(full) [ 117.319780][ T9855] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 117.319783][ T9855] Call Trace: [ 117.319785][ T9855] [ 117.319788][ T9855] dump_stack_lvl+0x1c1/0x2a0 [ 117.319795][ T9855] ? __virt_addr_valid+0x1c8/0x5c0 [ 117.319803][ T9855] ? __pfx_dump_stack_lvl+0x10/0x10 [ 117.319808][ T9855] ? rcu_is_watching+0x15/0xb0 [ 117.319816][ T9855] ? lock_release+0x4b/0x3e0 [ 117.319821][ T9855] ? __kasan_check_byte+0x12/0x40 [ 117.319828][ T9855] ? __virt_addr_valid+0x1c8/0x5c0 [ 117.319835][ T9855] ? __virt_addr_valid+0x4a5/0x5c0 [ 117.319842][ T9855] print_report+0x17e/0x7e0 [ 117.319848][ T9855] ? __virt_addr_valid+0x1c8/0x5c0 [ 117.319855][ T9855] ? __virt_addr_valid+0x4a5/0x5c0 [ 117.319862][ T9855] ? __phys_addr+0xd3/0x180 [ 117.319869][ T9855] ? hfsplus_strcasecmp+0x1bc/0x490 [ 117.319876][ T9855] kasan_report+0x147/0x180 [ 117.319882][ T9855] ? hfsplus_strcasecmp+0x1bc/0x490 [ 117.319891][ T9855] hfsplus_strcasecmp+0x1bc/0x490 [ 117.319900][ T9855] ? __pfx_hfsplus_cat_case_cmp_key+0x10/0x10 [ 117.319906][ T9855] hfs_find_rec_by_key+0xa9/0x1e0 [ 117.319913][ T9855] __hfsplus_brec_find+0x18e/0x470 [ 117.319920][ T9855] ? __pfx_hfsplus_bnode_find+0x10/0x10 [ 117.319926][ T9855] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 117.319933][ T9855] ? __pfx___hfsplus_brec_find+0x10/0x10 [ 117.319942][ T9855] hfsplus_brec_find+0x28f/0x510 [ 117.319949][ T9855] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 117.319956][ T9855] ? __pfx_hfsplus_brec_find+0x10/0x10 [ 117.319963][ T9855] ? __kmalloc_noprof+0x2a9/0x510 [ 117.319969][ T9855] ? hfsplus_find_init+0x8c/0x1d0 [ 117.319976][ T9855] hfsplus_brec_read+0x2b/0x120 [ 117.319983][ T9855] hfsplus_lookup+0x2aa/0x890 [ 117.319990][ T9855] ? __pfx_hfsplus_lookup+0x10/0x10 [ 117.320003][ T9855] ? d_alloc_parallel+0x2f0/0x15e0 [ 117.320008][ T9855] ? __lock_acquire+0xaec/0xd80 [ 117.320013][ T9855] ? __pfx_d_alloc_parallel+0x10/0x10 [ 117.320019][ T9855] ? __raw_spin_lock_init+0x45/0x100 [ 117.320026][ T9855] ? __init_waitqueue_head+0xa9/0x150 [ 117.320034][ T9855] __lookup_slow+0x297/0x3d0 [ 117.320039][ T9855] ? __pfx___lookup_slow+0x10/0x10 [ 117.320045][ T9855] ? down_read+0x1ad/0x2e0 [ 117.320055][ T9855] lookup_slow+0x53/0x70 [ 117.320065][ T9855] walk_component+0x2f0/0x430 [ 117.320073][ T9855] path_lookupat+0x169/0x440 [ 117.320081][ T9855] filename_lookup+0x212/0x590 [ 117.320089][ T9855] ? __pfx_filename_lookup+0x10/0x10 [ 117.320098][ T9855] ? strncpy_from_user+0x150/0x290 [ 117.320105][ T9855] ? getname_flags+0x1e5/0x540 [ 117.320112][ T9855] user_path_at+0x3a/0x60 [ 117.320117][ T9855] __x64_sys_umount+0xee/0x160 [ 117.320123][ T9855] ? __pfx___x64_sys_umount+0x10/0x10 [ 117.320129][ T9855] ? do_syscall_64+0xb7/0x3a0 [ 117.320135][ T9855] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 117.320141][ T9855] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 117.320145][ T9855] do_syscall_64+0xf3/0x3a0 [ 117.320150][ T9855] ? exc_page_fault+0x9f/0xf0 [ 117.320154][ T9855] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 117.320158][ T9855] RIP: 0033:0x7f7dd7908b07 [ 117.320163][ T9855] Code: 23 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 08 [ 117.320167][ T9855] RSP: 002b:00007ffd5ebd9698 EFLAGS: 00000202 ---truncated---

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

October 30, 2025

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Jul 31, 2026
No patch confirmed yet.
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ef250c3edd995d7bb5a5e5122ffad1c28a8686eb
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b47a75b6f762321f9eb6f31aab7bce47a37063b7
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ab44236b32ed41eb0636797e8e8e885a2f3b18a
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/603158d4efa98a13a746bd586c20f194f4a31ec8
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/586c75dfd1d265c4150f6529debb85c9d62e101f
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4f5ab4a9c6abd8b0d713cc2b7b041bc10d70f241
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4bc081ba6c52b0c88c92701e3fbc33c7e2277afb
generic

hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/42520df65bf67189541a425f7d36b0b3e7bd7844

Vendor Advisories for CVE-2025-40088(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-nvidia-tegra-rt-5.15 (5.15.0.1052.52~20.04.2) @ focal2026-05-21ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-realtime-5.15 (5.15.0.1099.103) @ jammy2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1100.90) @ jammy2026-05-21ubuntu
ubuntulinux-tools-aws-edge (5.15.0.1100.107~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-14.14) @ questing2026-05-21ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.170.159) @ jammy2026-05-21ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1097.93) @ jammy2026-05-21ubuntu
ubuntulinux-tools-nvidia-tegra-igx-rt-5.15 (5.15.0.1041.43) @ jammy2026-05-21ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1011.11) @ noble2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1095.95) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1008.8) @ questing2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1064 (5.15.0-1064.68) @ jammy2026-05-21ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1095.95) @ jammy2026-05-21ubuntu
ubuntulinux-virtual-6.8 (6.8.0-106.106) @ noble2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1049.52.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1052.55+fips1) @ noble2026-05-21ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1045.46) @ noble2026-05-21ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1050.53~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1051.57) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1051.57~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2040.41) @ noble2026-05-21ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1097.95) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1109.94) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1110.119~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1109.107) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1052.58+fips1) @ noble2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1029.30) @ noble2026-05-21ubuntu
linuxKernel @ 5.4.301—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.

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 12× in last 7d / 45× 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 139 total refreshes for this CVE.

  1. 2026-08-05 12:53 UTCEG score recompute
  2. 2026-08-05 12:53 UTCVendor advisory
  3. 2026-08-05 12:53 UTCGHSA enrichment
  4. 2026-08-04 10:37 UTCEPSS rescore
  5. 2026-08-03 10:35 UTCEPSS rescore
  6. 2026-08-02 02:26 UTCEPSS rescore
  7. 2026-08-01 04:15 UTCEPSS rescore
  8. 2026-07-30 16:27 UTCEPSS rescore
  9. 2026-07-30 06:30 UTCEG score recompute▲ 7.10
  10. 2026-07-30 06:30 UTCVendor advisory
  11. 2026-07-30 06:29 UTCGHSA enrichment
  12. 2026-07-30 06:18 UTCMITRE cvelistV5CVSS v3 → 7.1 · severity → HIGH
  13. 2026-07-30 01:29 UTCEPSS rescore
  14. 2026-07-28 15:35 UTCEPSS rescore
  15. 2026-07-27 08:39 UTCOSV refresh
  16. 2026-07-26 14:54 UTCEPSS rescore
  17. 2026-07-25 14:17 UTCEPSS rescore
  18. 2026-07-25 14:17 UTCEPSS rescore
  19. 2026-07-24 14:17 UTCEPSS rescore
  20. 2026-07-23 02:55 UTCEG score recompute
  21. 2026-07-22 14:07 UTCEPSS rescore
  22. 2026-07-22 14:07 UTCEPSS rescore
  23. 2026-07-21 15:24 UTCEPSS rescore
  24. 2026-07-20 17:07 UTCEPSS rescore
  25. 2026-07-19 14:30 UTCEPSS rescore
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  1. 2026-07-19 14:30 UTCEPSS rescore
  2. 2026-07-19 02:28 UTCEPSS rescore
  3. 2026-07-19 02:28 UTCEPSS rescore
  4. 2026-07-18 10:04 UTCEPSS rescore
  5. 2026-07-18 10:04 UTCEPSS rescore
  6. 2026-07-16 17:02 UTCEPSS rescore
  7. 2026-07-15 16:57 UTCEPSS rescore
  8. 2026-07-15 16:57 UTCEPSS rescore
  9. 2026-07-15 01:59 UTCEPSS rescore
  10. 2026-07-15 01:59 UTCEPSS rescore
  11. 2026-07-13 22:29 UTCEPSS rescore
  12. 2026-07-13 22:29 UTCEPSS rescore
  13. 2026-07-13 06:12 UTCEPSS rescore
  14. 2026-07-12 05:46 UTCEPSS rescore
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-11 08:27 UTCEPSS rescore
  17. 2026-07-10 03:23 UTCOSV refresh
  18. 2026-07-09 19:09 UTCEPSS rescore
  19. 2026-07-09 19:09 UTCEPSS rescore
  20. 2026-07-07 13:45 UTCEPSS rescore
  21. 2026-07-06 02:23 UTCEPSS rescore
  22. 2026-07-05 02:30 UTCEPSS rescore
  23. 2026-07-04 06:30 UTCEPSS rescore
  24. 2026-07-01 15:06 UTCEPSS rescore
  25. 2026-07-01 15:06 UTCEPSS rescore
  26. 2026-06-30 23:22 UTCEPSS rescore
  27. 2026-06-30 23:22 UTCEPSS rescore
  28. 2026-06-29 14:06 UTCEPSS rescore
  29. 2026-06-29 14:06 UTCEPSS rescore
  30. 2026-06-28 14:07 UTCEPSS rescore
  31. 2026-06-28 14:07 UTCEPSS rescore
  32. 2026-06-28 04:55 UTCEPSS rescore
  33. 2026-06-28 04:55 UTCEPSS rescore
  34. 2026-06-27 03:08 UTCEPSS rescore
  35. 2026-06-27 03:08 UTCEPSS rescore
  36. 2026-06-25 13:49 UTCEPSS rescore
  37. 2026-06-25 13:49 UTCEPSS rescore
  38. 2026-06-24 14:04 UTCEPSS rescore
  39. 2026-06-24 14:04 UTCEPSS rescore
  40. 2026-06-23 21:32 UTCEPSS rescore
  41. 2026-06-23 21:32 UTCEPSS rescore
  42. 2026-06-22 14:25 UTCEPSS rescore
  43. 2026-06-22 14:25 UTCEPSS rescore
  44. 2026-06-21 14:56 UTCEPSS rescore
  45. 2026-06-21 14:56 UTCEPSS rescore
  46. 2026-06-21 13:31 UTCOSV refresh
  47. 2026-06-21 01:59 UTCEPSS rescore
  48. 2026-06-21 01:59 UTCEPSS rescore
  49. 2026-06-19 19:25 UTCEPSS rescore
  50. 2026-06-19 19:25 UTCEPSS rescore
  51. 2026-06-18 17:52 UTCEPSS rescore
  52. 2026-06-18 17:52 UTCEPSS rescore
  53. 2026-06-17 17:52 UTCEPSS rescore
  54. 2026-06-16 17:52 UTCEPSS rescore
  55. 2026-06-16 17:52 UTCEPSS rescore
  56. 2026-06-14 23:17 UTCEPSS rescore
  57. 2026-06-13 23:00 UTCEPSS rescore
  58. 2026-06-12 23:11 UTCEPSS rescore
  59. 2026-06-11 14:00 UTCEPSS rescore
  60. 2026-06-10 22:18 UTCEPSS rescore
  61. 2026-06-10 13:22 UTCEPSS rescore
  62. 2026-06-08 14:16 UTCEPSS rescore
  63. 2026-06-08 14:16 UTCEPSS rescore
  64. 2026-06-07 15:24 UTCEPSS rescore
  65. 2026-06-06 13:47 UTCEPSS rescore
  66. 2026-06-06 13:47 UTCEPSS rescore
  67. 2026-06-05 22:46 UTCEPSS rescore
  68. 2026-06-05 22:46 UTCEPSS rescore
  69. 2026-06-05 06:10 UTCEPSS rescore
  70. 2026-06-05 06:10 UTCEPSS rescore
  71. 2026-06-04 13:12 UTCEPSS rescore
  72. 2026-06-04 13:12 UTCEPSS rescore
  73. 2026-06-02 20:12 UTCEPSS rescore
  74. 2026-06-02 08:09 UTCOSV refresh
  75. 2026-06-01 13:51 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-40088?
CVE-2025-40088 is a high vulnerability published on October 30, 2025. In the Linux kernel, the following vulnerability has been resolved: hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() The hfsplus_strcasecmp() logic can trigger the issue: [ 117.317703][ T9855] ================================================================== [ 117.318353][ T9855] BUG:…
When was CVE-2025-40088 disclosed?
CVE-2025-40088 was first published in the National Vulnerability Database on October 30, 2025, 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-2025-40088 actively exploited?
CVE-2025-40088 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 96.2% of all scored CVEs.
What is the CVSS score of CVE-2025-40088?
CVE-2025-40088 has a CVSS v4.0 base score of 7.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2025-40088?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-40088, 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.

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