CVE-2026-43476

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-13. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()

sizeof(num) evaluates to sizeof(size_t) (8 bytes on 64-bit) instead of the intended __be32 element size (4 bytes). Use sizeof(*meas) to correctly match the buffer element type.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 13, 2026

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Jun 4, 2026
No patch confirmed yet.
generic

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dcdf1e92674efb6692f4ebe189e0aa9fde23a541
generic

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9aff2e9c2927ecd9652872a43a0725f101128104
generic

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/90e978ace598567e6e30de79805bddf37cf892ac
generic

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2a4d111a6a34afb8bb4f118009e7728ed2ec7e10
generic

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/216345f98cae7fcc84f49728c67478ac00321c87
generic

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/165f12b40901c6a7aca15796da239726ddcdc5ad
generic

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/08881d82f94deaa51800360029908863e5c4c39d

Vendor Advisories for CVE-2026-43476(1)

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

Patch Availability(27)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.186.196~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-edge (5.15.0.1112.119~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1061.64~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (6.8.0-1061.62~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1107.113~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-23ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-23ubuntu
linuxKernel @ 5.15.203—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

(3 across 3 ecosystems)
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 ... 6.19~rc8-1~exp1 (122 versions)6.19.10-1—

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 7× in last 7d / 32× 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 219 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43476?
CVE-2026-43476 is a high vulnerability published on May 13, 2026. In the Linux kernel, the following vulnerability has been resolved: iio: chemical: sps30i2c: fix buffer size in sps30i2creadmeas() sizeof(num) evaluates to sizeof(size_t) (8 bytes on 64-bit) instead of the intended be32 element size (4 bytes). Use sizeof(*meas) to correctly match the buffer element…
When was CVE-2026-43476 disclosed?
CVE-2026-43476 was first published in the National Vulnerability Database on May 13, 2026, 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-2026-43476 actively exploited?
CVE-2026-43476 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-43476?
CVE-2026-43476 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-43476?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43476, 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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