CVE-2026-45877

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients

During a warm reset flow, the cl->device pointer may be NULL if the reset occurs while clients are still being enumerated. Accessing cl->device->reference_count without a NULL check leads to a kernel panic.

This issue was identified during multi-unit warm reboot stress clycles. Add a defensive NULL check for cl->device to ensure stability under such intensive testing conditions.

KASAN: null-ptr-deref in range [0000000000000000-0000000000000007] Workqueue: ish_fw_update_wq fw_reset_work_fn

Call Trace: ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp] ishtp_reset_handler+0x85/0x1a0 [intel_ishtp] fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 25, 2026

Advisory Details (4)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4
generic

HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58
generic

HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054
generic

HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8

Vendor Advisories for CVE-2026-45877(2)

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

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-25ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1055.56~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-08-25ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-08-25ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
linuxKernel @ 6.12.75—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 rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc5-1~exp1 (335 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.18~rc7-1~exp1 (100 versions)6.18.14-1—

Weakness Classification(1)

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

All Vendor Advisories

(12)

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 5× in last 7d / 64× 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 184 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45877?
CVE-2026-45877 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: fix NULL-ptr-deref in ishtpbusremoveallclients During a warm reset flow, the cl->device pointer may be NULL if the reset occurs while clients are still being enumerated. Accessing cl->device->reference_count…
When was CVE-2026-45877 disclosed?
CVE-2026-45877 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45877 actively exploited?
CVE-2026-45877 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 94.6% of all scored CVEs.
What is the CVSS score of CVE-2026-45877?
CVE-2026-45877 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45877?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45877, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45877

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