CVE-2025-39818

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-09-16. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

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

HID: intel-thc-hid: intel-thc: Fix incorrect pointer arithmetic in I2C regs save

Improper use of secondary pointer (&dev->i2c_subip_regs) caused kernel crash and out-of-bounds error:

BUG: KASAN: slab-out-of-bounds in _regmap_bulk_read+0x449/0x510 Write of size 4 at addr ffff888136005dc0 by task kworker/u33:5/5107

CPU: 3 UID: 0 PID: 5107 Comm: kworker/u33:5 Not tainted 6.16.0+ #3 PREEMPT(voluntary) Workqueue: async async_run_entry_fn Call Trace: dump_stack_lvl+0x76/0xa0 print_report+0xd1/0x660 ? __pfx__raw_spin_lock_irqsave+0x10/0x10 ? kasan_complete_mode_report_info+0x26/0x200 kasan_report+0xe1/0x120 ? _regmap_bulk_read+0x449/0x510 ? _regmap_bulk_read+0x449/0x510 __asan_report_store4_noabort+0x17/0x30 _regmap_bulk_read+0x449/0x510 ? __pfx__regmap_bulk_read+0x10/0x10 regmap_bulk_read+0x270/0x3d0 pio_complete+0x1ee/0x2c0 [intel_thc] ? __pfx_pio_complete+0x10/0x10 [intel_thc] ? __pfx_pio_wait+0x10/0x10 [intel_thc] ? regmap_update_bits_base+0x13b/0x1f0 thc_i2c_subip_pio_read+0x117/0x270 [intel_thc] thc_i2c_subip_regs_save+0xc2/0x140 [intel_thc] ? __pfx_thc_i2c_subip_regs_save+0x10/0x10 [intel_thc] [...] The buggy address belongs to the object at ffff888136005d00 which belongs to the cache kmalloc-rnd-12-192 of size 192 The buggy address is located 0 bytes to the right of allocated 192-byte region [ffff888136005d00, ffff888136005dc0)

Replaced with direct array indexing (&dev->i2c_subip_regs[i]) to ensure safe memory access.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
3.3%
KEV
Not listed

Published

September 16, 2025

Last Modified

January 14, 2026

References (2)

Vendor Advisories for CVE-2025-39818(2)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-realtime-hwe-24.04-edge (6.14.0-1016.16~24.04.1) @ noble2026-05-29ubuntu
ubuntulinux-tools-raspi-6.14 (6.14.0-1018.18) @ plucky2026-05-29ubuntu
ubuntulinux-tools-oracle-edge (6.14.0-1017.17~24.04.1) @ noble2026-05-29ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-36.36) @ plucky2026-05-29ubuntu
ubuntulinux-tools-azure-edge (6.14.0-1017.17~24.04.1) @ noble2026-05-29ubuntu
redhatkernel-0:5.14.0-611.41.1.el9_72026-03-17redhat
redhatkernel-0:6.12.0-124.43.1.el10_12026-03-09redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 41× 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.

  1. 2026-07-23 02:55 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-22 14:07 UTCEPSS rescore
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  20. 2026-07-06 14:11 UTCOSV refresh
  21. 2026-07-06 02:23 UTCEPSS rescore
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  24. 2026-07-01 15:06 UTCEPSS rescore
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  1. 2026-06-30 23:22 UTCEPSS rescore
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  3. 2026-06-29 14:06 UTCEPSS rescore
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  5. 2026-06-28 14:07 UTCEPSS rescore
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  7. 2026-06-28 04:55 UTCEPSS rescore
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  23. 2026-06-18 17:52 UTCEPSS rescore
  24. 2026-06-18 17:52 UTCEPSS rescore
  25. 2026-06-18 02:35 UTCOSV refresh
  26. 2026-06-17 17:52 UTCEPSS rescore
  27. 2026-06-16 17:52 UTCEPSS rescore
  28. 2026-06-16 17:52 UTCEPSS rescore
  29. 2026-06-14 23:17 UTCEPSS rescore
  30. 2026-06-13 23:00 UTCEPSS rescore
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  37. 2026-06-07 15:24 UTCEPSS rescore
  38. 2026-06-06 13:47 UTCEPSS rescore
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  40. 2026-06-05 22:46 UTCEPSS rescore
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  42. 2026-06-05 06:10 UTCEPSS rescore
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  44. 2026-06-04 13:12 UTCEPSS rescore
  45. 2026-06-04 13:12 UTCEPSS rescore
  46. 2026-06-02 20:12 UTCEPSS rescore
  47. 2026-06-01 13:51 UTCEPSS rescore
  48. 2026-06-01 13:51 UTCEPSS rescore
  49. 2026-05-31 22:30 UTCEPSS rescore
  50. 2026-05-31 22:30 UTCEPSS rescore
  51. 2026-05-31 00:16 UTCEPSS rescore
  52. 2026-05-29 22:41 UTCEG score recompute
  53. 2026-05-29 22:41 UTCVendor advisory
  54. 2026-05-29 22:40 UTCGHSA enrichment
  55. 2026-05-29 13:44 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-39818?
CVE-2025-39818 is a high vulnerability published on September 16, 2025. In the Linux kernel, the following vulnerability has been resolved: HID: intel-thc-hid: intel-thc: Fix incorrect pointer arithmetic in I2C regs save Improper use of secondary pointer (&dev->i2csubipregs) caused kernel crash and out-of-bounds error: BUG: KASAN: slab-out-of-bounds in…
When was CVE-2025-39818 disclosed?
CVE-2025-39818 was first published in the National Vulnerability Database on September 16, 2025, with the most recent update on January 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-39818 actively exploited?
CVE-2025-39818 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-39818?
CVE-2025-39818 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-39818?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-39818, 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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