CVE-2026-53344

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 96% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 4 sources updated this week
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 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:

pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init

Regmap initialization triggers regcache_maple_populate() which attempts SPI read to populate cache. SPI read requires mcp->dev and mcp->addr to be set, without them, NULL pointer dereference occurs during probe.

Move initialization before mcp23s08_spi_regmap_init() call.

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
1.0%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jul 24, 2026
No patch confirmed yet.
generic

pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8473c3a197b57ff01396f7a2ec6ddf65383820d4
generic

pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3a13bb9540dfd7014c5601608afcbbadbbcfd673

Vendor Advisories for CVE-2026-53344(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 302× in last 7d / 334× 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 334 total refreshes for this CVE.

  1. 2026-07-24 14:18 UTCEPSS rescore
  2. 2026-07-23 22:13 UTCEG score recompute 5.50
  3. 2026-07-23 22:13 UTCGHSA enrichment
  4. 2026-07-23 22:11 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  5. 2026-07-23 14:18 UTCEPSS rescore
  6. 2026-07-23 03:19 UTCEG score recompute
  7. 2026-07-22 14:08 UTCEPSS rescore
  8. 2026-07-21 15:25 UTCEPSS rescore
  9. 2026-07-20 17:08 UTCEPSS rescore
  10. 2026-07-19 14:31 UTCEPSS rescore
  11. 2026-07-19 14:31 UTCEPSS rescore
  12. 2026-07-19 12:21 UTCGHSA enrichment
  13. 2026-07-19 12:21 UTCGHSA enrichment
  14. 2026-07-19 12:18 UTCGHSA enrichment
  15. 2026-07-19 12:08 UTCGHSA enrichment
  16. 2026-07-19 12:07 UTCGHSA enrichment
  17. 2026-07-19 12:05 UTCGHSA enrichment
  18. 2026-07-19 12:02 UTCGHSA enrichment
  19. 2026-07-19 12:01 UTCGHSA enrichment
  20. 2026-07-19 11:52 UTCGHSA enrichment
  21. 2026-07-19 11:51 UTCGHSA enrichment
  22. 2026-07-19 11:50 UTCGHSA enrichment
  23. 2026-07-19 11:49 UTCGHSA enrichment
  24. 2026-07-19 11:48 UTCGHSA enrichment
  25. 2026-07-19 11:47 UTCGHSA enrichment
Show 75 more
  1. 2026-07-19 11:46 UTCGHSA enrichment
  2. 2026-07-19 11:45 UTCGHSA enrichment
  3. 2026-07-19 11:43 UTCGHSA enrichment
  4. 2026-07-19 11:42 UTCGHSA enrichment
  5. 2026-07-19 11:41 UTCGHSA enrichment
  6. 2026-07-19 11:40 UTCGHSA enrichment
  7. 2026-07-19 11:38 UTCGHSA enrichment
  8. 2026-07-19 11:33 UTCGHSA enrichment
  9. 2026-07-19 11:32 UTCGHSA enrichment
  10. 2026-07-19 11:32 UTCGHSA enrichment
  11. 2026-07-19 11:31 UTCGHSA enrichment
  12. 2026-07-19 11:29 UTCGHSA enrichment
  13. 2026-07-19 11:26 UTCGHSA enrichment
  14. 2026-07-19 11:25 UTCGHSA enrichment
  15. 2026-07-19 11:24 UTCGHSA enrichment
  16. 2026-07-19 11:23 UTCGHSA enrichment
  17. 2026-07-19 11:22 UTCGHSA enrichment
  18. 2026-07-19 11:21 UTCGHSA enrichment
  19. 2026-07-19 11:20 UTCGHSA enrichment
  20. 2026-07-19 11:19 UTCGHSA enrichment
  21. 2026-07-19 11:18 UTCGHSA enrichment
  22. 2026-07-19 11:17 UTCGHSA enrichment
  23. 2026-07-19 11:16 UTCGHSA enrichment
  24. 2026-07-19 11:15 UTCGHSA enrichment
  25. 2026-07-19 11:14 UTCGHSA enrichment
  26. 2026-07-19 11:13 UTCGHSA enrichment
  27. 2026-07-19 11:11 UTCGHSA enrichment
  28. 2026-07-19 11:10 UTCGHSA enrichment
  29. 2026-07-19 11:09 UTCGHSA enrichment
  30. 2026-07-19 11:06 UTCGHSA enrichment
  31. 2026-07-19 11:05 UTCGHSA enrichment
  32. 2026-07-19 11:05 UTCGHSA enrichment
  33. 2026-07-19 11:01 UTCGHSA enrichment
  34. 2026-07-19 11:00 UTCGHSA enrichment
  35. 2026-07-19 10:58 UTCGHSA enrichment
  36. 2026-07-19 10:57 UTCGHSA enrichment
  37. 2026-07-19 10:56 UTCGHSA enrichment
  38. 2026-07-19 10:55 UTCGHSA enrichment
  39. 2026-07-19 10:52 UTCGHSA enrichment
  40. 2026-07-19 10:51 UTCGHSA enrichment
  41. 2026-07-19 10:50 UTCGHSA enrichment
  42. 2026-07-19 10:49 UTCGHSA enrichment
  43. 2026-07-19 10:49 UTCGHSA enrichment
  44. 2026-07-19 10:47 UTCGHSA enrichment
  45. 2026-07-19 10:45 UTCGHSA enrichment
  46. 2026-07-19 10:44 UTCGHSA enrichment
  47. 2026-07-19 10:43 UTCGHSA enrichment
  48. 2026-07-19 10:42 UTCGHSA enrichment
  49. 2026-07-19 10:41 UTCGHSA enrichment
  50. 2026-07-19 10:40 UTCGHSA enrichment
  51. 2026-07-19 10:31 UTCGHSA enrichment
  52. 2026-07-19 10:29 UTCGHSA enrichment
  53. 2026-07-19 10:27 UTCGHSA enrichment
  54. 2026-07-19 10:23 UTCGHSA enrichment
  55. 2026-07-19 10:21 UTCGHSA enrichment
  56. 2026-07-19 10:19 UTCGHSA enrichment
  57. 2026-07-19 10:18 UTCGHSA enrichment
  58. 2026-07-19 10:16 UTCGHSA enrichment
  59. 2026-07-19 10:13 UTCGHSA enrichment
  60. 2026-07-19 10:11 UTCGHSA enrichment
  61. 2026-07-19 10:10 UTCGHSA enrichment
  62. 2026-07-19 10:06 UTCGHSA enrichment
  63. 2026-07-19 10:05 UTCGHSA enrichment
  64. 2026-07-19 10:04 UTCGHSA enrichment
  65. 2026-07-19 10:03 UTCGHSA enrichment
  66. 2026-07-19 10:02 UTCGHSA enrichment
  67. 2026-07-19 10:01 UTCGHSA enrichment
  68. 2026-07-19 10:00 UTCGHSA enrichment
  69. 2026-07-19 09:59 UTCGHSA enrichment
  70. 2026-07-19 09:58 UTCGHSA enrichment
  71. 2026-07-19 09:56 UTCGHSA enrichment
  72. 2026-07-19 09:55 UTCGHSA enrichment
  73. 2026-07-19 09:54 UTCGHSA enrichment
  74. 2026-07-19 09:53 UTCGHSA enrichment
  75. 2026-07-19 09:52 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-53344?
CVE-2026-53344 is a medium vulnerability published on July 1, 2026. In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init Regmap initialization triggers regcachemaplepopulate() which attempts SPI read to populate cache. SPI read requires mcp->dev and mcp->addr to be set, without…
When was CVE-2026-53344 disclosed?
CVE-2026-53344 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53344 actively exploited?
CVE-2026-53344 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53344?
CVE-2026-53344 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53344?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53344, 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

Explore the affected products and dependency analysis for CVE-2026-53344

Explore →

Is Your Infrastructure Affected by CVE-2026-53344?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.