CVE-2026-45863

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
Trending — 4 sources updated this week
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

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers()

The dw_i3c_master_i2c_xfers() function allocates memory for the xfer structure using dw_i3c_master_alloc_xfer(). If pm_runtime_resume_and_get() fails, the function returns without freeing the allocated xfer, resulting in a memory leak.

Add a dw_i3c_master_free_xfer() call to the error path to ensure the allocated memory is properly freed.

Compile tested only. Issue found using a prototype static analysis tool and code review.

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

i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a2c41467ef42f69a3958493a0395ba75174710dc
generic

i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8e71414e252c1cb235911008a98fd47927d3a55c
generic

i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2537089413514caaa9a5fdeeac3a34d45100f747
generic

i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/140a45bd4f6db7d1b30cab967d29689b946c52fa

Vendor Advisories for CVE-2026-45863(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
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

(2 across 2 ecosystems)
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 (103 versions)6.18.14-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 34× 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 176 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45863?
CVE-2026-45863 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: i3c: dw: Fix memory leak in dwi3cmasteri2cxfers() The dwi3cmasteri2cxfers() function allocates memory for the xfer structure using dwi3cmasterallocxfer(). If pmruntimeresumeandget() fails, the function returns without freeing the…
When was CVE-2026-45863 disclosed?
CVE-2026-45863 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-2026-45863 actively exploited?
CVE-2026-45863 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 94.9% of all scored CVEs.
What is the CVSS score of CVE-2026-45863?
CVE-2026-45863 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45863?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45863, 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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