CVE-2026-64023

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-19. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

gpio: aggregator: fix a potential use-after-free

On error we free aggr->lookups->dev_id before removing the entry from the lookup table. If a concurrent thread calls gpiod_find() before we remove the entry, it could iterate over the list and call gpiod_match_lookup_table() which unconditionally dereferences dev_id when calling strcmp(). Reverse the order of cleanup.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

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 (value × EchelonGraph’s weight)
Severity78% × 45%
The EG Score, 7.8 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 19, 2026

Last Modified

October 13, 2026

Advisory Details (3)

Auto-updated Jul 21, 2026
Patch available.
Web page

gpio: aggregator: fix a potential use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11
Web page

gpio: aggregator: fix a potential use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871
Web page

gpio: aggregator: fix a potential use-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e

Vendor Advisories for CVE-2026-64023(1)

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

Patch Availability(9)

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

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (142 versions)
  • every version up to 7.0.12-1: fixed in 7.0.12-1
—

Weakness Classification(1)

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

All Vendor Advisories

(9)

Data Freshness Timeline

(refreshed 17× in last 7d / 50× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 294 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 194 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-13 15:07 UTCEG score recompute
  3. 2026-10-13 15:07 UTCVendor advisory
  4. 2026-10-13 15:07 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-10-13 11:47 UTCEG score recompute
  6. 2026-10-13 11:47 UTCVendor advisory
  7. 2026-10-13 11:47 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  8. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-10-12 15:48 UTCEG score recompute
  10. 2026-10-11 19:33 UTCEG score recompute
  11. 2026-10-11 16:48 UTCEG score recompute
  12. 2026-10-11 14:09 UTCEG score recompute
  13. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  14. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-10-01 08:45 UTCEG score recompute
  24. 2026-10-01 08:45 UTCVendor advisory
  25. 2026-10-01 08:44 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
Show 75 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-09-28 07:24 UTCEG score recompute
  3. 2026-09-28 07:24 UTCVendor advisory
  4. 2026-09-28 07:24 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  6. 2026-09-24 03:39 UTCEG score recompute
  7. 2026-09-24 03:39 UTCVendor advisory
  8. 2026-09-24 03:39 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-09-23 02:01 UTCEG score recompute
  11. 2026-09-23 02:01 UTCVendor advisory
  12. 2026-09-23 02:01 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-09-18 04:18 UTCEG score recompute
  16. 2026-09-18 04:18 UTCVendor advisory
  17. 2026-09-18 04:18 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  18. 2026-09-17 05:29 UTCEG score recompute
  19. 2026-09-17 05:29 UTCVendor advisory
  20. 2026-09-17 05:29 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  21. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-09-16 12:58 UTCEG score recompute
  23. 2026-09-16 12:58 UTCVendor advisory
  24. 2026-09-16 12:58 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  26. 2026-09-14 11:33 UTCVendor advisory
  27. 2026-09-14 11:32 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  28. 2026-09-13 22:58 UTCEG score recompute
  29. 2026-09-13 22:58 UTCVendor advisory
  30. 2026-09-13 22:57 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  31. 2026-09-13 08:42 UTCVendor advisory
  32. 2026-09-13 08:42 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  33. 2026-09-12 20:02 UTCEG score recompute
  34. 2026-09-12 20:02 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  35. 2026-09-12 07:22 UTCVendor advisory
  36. 2026-09-12 07:22 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  37. 2026-09-11 18:47 UTCEG score recompute
  38. 2026-09-11 18:47 UTCVendor advisory
  39. 2026-09-11 18:47 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  40. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  41. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  42. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-09-07 23:19 UTCEG score recompute
  44. 2026-09-07 23:19 UTCVendor advisory
  45. 2026-09-07 23:19 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  46. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  47. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  48. 2026-09-06 12:57 UTCVendor advisory
  49. 2026-09-06 12:57 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  50. 2026-09-05 22:34 UTCEG score recompute
  51. 2026-09-05 22:34 UTCVendor advisory
  52. 2026-09-05 22:34 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-09-05 09:57 UTCEG score recompute
  55. 2026-09-05 09:57 UTCVendor advisory
  56. 2026-09-05 09:57 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  58. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  59. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-08-31 04:21 UTCEG score recompute
  62. 2026-08-31 04:21 UTCVendor advisory
  63. 2026-08-31 04:21 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  64. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  65. 2026-08-30 15:37 UTCVendor advisory
  66. 2026-08-30 15:37 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  67. 2026-08-30 02:52 UTCEG score recompute
  68. 2026-08-30 02:52 UTCVendor advisory
  69. 2026-08-30 02:52 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  70. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  71. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  72. 2026-08-28 01:43 UTCEG score recompute
  73. 2026-08-28 01:43 UTCVendor advisory
  74. 2026-08-28 01:42 UTCGHSA enrichmentGHSA-pp22-5w4f-hc5v · GitHub severity HIGH · GitHub CVSS 7.8
  75. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile

Frequently asked(5)

What is CVE-2026-64023?
CVE-2026-64023 is a high-severity vulnerability; its CVE record was published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: gpio: aggregator: fix a potential use-after-free On error we free aggr->lookups->dev_id before removing the entry from the lookup table. If a concurrent thread calls gpiod_find() before we remove the entry, it could iterate over…
When was the CVE record for CVE-2026-64023 published?
The CVE record for CVE-2026-64023 was published on July 19, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 13, 2026; the record at its source may have been updated since.
Is CVE-2026-64023 actively exploited?
CVE-2026-64023 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64023?
CVE-2026-64023 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-64023?
A fix for CVE-2026-64023 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64023 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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