CVE-2026-45978

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:

staging: greybus: lights: avoid NULL deref

gb_lights_light_config() stores channel_count before allocating the channels array. If kcalloc() fails, gb_lights_release() iterates the non-zero count and dereferences light->channels, which is NULL.

Allocate channels first and only then publish channels_count so the cleanup path can't walk a NULL pointer.

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
2%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (8)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0af
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71f
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0b
generic

staging: greybus: lights: avoid NULL deref - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091

Vendor Advisories for CVE-2026-45978(1)

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

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-08-25ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-25ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-25ubuntu
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-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-25ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-25ubuntu

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 ... 5.10.92-2 (53 versions)5.10.257-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
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

(24)

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 / 66× 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 192 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 05:35 UTCEG score recompute
  11. 2026-08-25 05:35 UTCVendor advisory
  12. 2026-08-25 05:35 UTCGHSA enrichment
  13. 2026-08-23 15:26 UTCEG score recompute
  14. 2026-08-23 15:26 UTCVendor advisory
  15. 2026-08-23 15:26 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 20:46 UTCEG score recompute
  19. 2026-08-21 20:46 UTCVendor advisory
  20. 2026-08-21 20:46 UTCGHSA enrichment
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-20 12:33 UTCEG score recompute
  23. 2026-08-20 12:33 UTCVendor advisory
  24. 2026-08-20 12:32 UTCGHSA enrichment
  25. 2026-08-19 17:04 UTCEPSS rescore
Show 75 more
  1. 2026-08-18 13:48 UTCEPSS rescore
  2. 2026-08-17 13:47 UTCEPSS rescore
  3. 2026-08-17 09:19 UTCEG score recompute
  4. 2026-08-17 09:19 UTCVendor advisory
  5. 2026-08-17 09:19 UTCGHSA enrichment
  6. 2026-08-16 14:56 UTCEPSS rescore
  7. 2026-08-16 02:53 UTCEG score recompute
  8. 2026-08-16 02:53 UTCVendor advisory
  9. 2026-08-16 02:53 UTCGHSA enrichment
  10. 2026-08-16 02:14 UTCEPSS rescore
  11. 2026-08-15 01:30 UTCEPSS rescore
  12. 2026-08-14 12:13 UTCEG score recompute
  13. 2026-08-14 12:13 UTCVendor advisory
  14. 2026-08-14 12:13 UTCGHSA enrichment
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-13 10:54 UTCEG score recompute
  17. 2026-08-13 10:54 UTCVendor advisory
  18. 2026-08-13 10:54 UTCGHSA enrichment
  19. 2026-08-12 13:51 UTCEPSS rescore
  20. 2026-08-12 09:35 UTCEG score recompute
  21. 2026-08-12 09:35 UTCVendor advisory
  22. 2026-08-12 09:35 UTCGHSA enrichment
  23. 2026-08-11 05:45 UTCEG score recompute
  24. 2026-08-11 05:45 UTCVendor advisory
  25. 2026-08-11 05:45 UTCGHSA enrichment
  26. 2026-08-11 00:00 UTCEPSS rescore
  27. 2026-08-10 04:26 UTCEG score recompute
  28. 2026-08-10 04:26 UTCVendor advisory
  29. 2026-08-10 04:26 UTCGHSA enrichment
  30. 2026-08-09 13:46 UTCEPSS rescore
  31. 2026-08-09 03:07 UTCEG score recompute
  32. 2026-08-09 03:07 UTCVendor advisory
  33. 2026-08-09 03:07 UTCGHSA enrichment
  34. 2026-08-08 16:37 UTCEPSS rescore
  35. 2026-08-08 01:48 UTCEG score recompute
  36. 2026-08-08 01:48 UTCVendor advisory
  37. 2026-08-08 01:48 UTCGHSA enrichment
  38. 2026-08-07 00:30 UTCEG score recompute
  39. 2026-08-07 00:30 UTCVendor advisory
  40. 2026-08-07 00:30 UTCGHSA enrichment
  41. 2026-08-06 13:47 UTCEPSS rescore
  42. 2026-08-05 20:55 UTCEG score recompute
  43. 2026-08-05 20:55 UTCVendor advisory
  44. 2026-08-05 20:55 UTCGHSA enrichment
  45. 2026-08-05 19:17 UTCEPSS rescore
  46. 2026-08-04 15:10 UTCEPSS rescore
  47. 2026-08-04 10:39 UTCEPSS rescore
  48. 2026-08-03 18:44 UTCEG score recompute
  49. 2026-08-03 18:44 UTCVendor advisory
  50. 2026-08-03 18:44 UTCGHSA enrichment
  51. 2026-08-03 10:36 UTCEPSS rescore
  52. 2026-08-02 16:49 UTCEG score recompute
  53. 2026-08-02 16:49 UTCVendor advisory
  54. 2026-08-02 16:49 UTCGHSA enrichment
  55. 2026-08-02 02:27 UTCEPSS rescore
  56. 2026-08-01 15:30 UTCEG score recompute
  57. 2026-08-01 15:30 UTCVendor advisory
  58. 2026-08-01 15:30 UTCGHSA enrichment
  59. 2026-08-01 04:16 UTCEPSS rescore
  60. 2026-07-31 07:51 UTCEG score recompute
  61. 2026-07-31 07:51 UTCVendor advisory
  62. 2026-07-31 07:51 UTCGHSA enrichment
  63. 2026-07-30 16:28 UTCEPSS rescore
  64. 2026-07-30 01:30 UTCEPSS rescore
  65. 2026-07-29 15:46 UTCEG score recompute
  66. 2026-07-29 15:46 UTCVendor advisory
  67. 2026-07-29 15:46 UTCGHSA enrichment
  68. 2026-07-28 15:36 UTCEPSS rescore
  69. 2026-07-27 14:13 UTCEPSS rescore
  70. 2026-07-27 12:02 UTCEG score recompute
  71. 2026-07-27 12:02 UTCVendor advisory
  72. 2026-07-27 12:02 UTCGHSA enrichment
  73. 2026-07-26 14:54 UTCEPSS rescore
  74. 2026-07-26 14:54 UTCEPSS rescore
  75. 2026-07-25 14:18 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-45978?
CVE-2026-45978 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: staging: greybus: lights: avoid NULL deref gblightslightconfig() stores channelcount before allocating the channels array. If kcalloc() fails, gblightsrelease() iterates the non-zero count and dereferences light->channels, which is…
When was CVE-2026-45978 disclosed?
CVE-2026-45978 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45978 actively exploited?
CVE-2026-45978 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 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-45978?
CVE-2026-45978 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45978?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45978, 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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