CVE-2026-64243

HIGHPre-NVD 7.17.1
EchelonGraph scoreMEDIUM confidence

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

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-24. A secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-48652 (ENISA EUVD) · GHSA-g8x3-7685-9cvh (GitHub Security Advisories)Source: ENISA EUVD

7.1EG
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: 7.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

ASoC: codecs: simple-mux: Fix enum control bounds check

simple_mux_control_put() rejects values greater than e->items, but enum control values are zero based. For the two-entry mux used by this driver, valid values are 0 and 1, so value 2 must be rejected as well.

Accepting e->items can store an invalid mux state, pass it to the GPIO setter, and pass it on to the DAPM mux update path where it is used as an index into the enum text array.

Use the same >= e->items check used by the ASoC enum helpers.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
32
EG Risk 32/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity71% × 45%
Impact severity (EG Severity): CVSS 7.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (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

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.1): severity, escalated by confirmed exploitation. This CVE's 7.1 is its impact severity (EG Severity), not escalated.

EG Severity
7.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-07). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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 24, 2026

Last Modified

November 8, 2026

Advisory Details (7)

Auto-updated Jul 27, 2026
Patch available.
Web page

ASoC: codecs: simple-mux: Fix enum control bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f63ad68e18d774a5d15cd7e405ead63f6b322679
Web page

ASoC: codecs: simple-mux: Fix enum control bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d8cc3e747b002a8b965c529de79c0654675b9a1a
Web page

ASoC: codecs: simple-mux: Fix enum control bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6fb653b62f169f6050fac45b56bf21ad097e19f6
Web page

ASoC: codecs: simple-mux: Fix enum control bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5fe860af8630cf7c78523cbd68e5a234743585aa
Web page

ASoC: codecs: simple-mux: Fix enum control bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2ff3ac6f7664fe5639cad01712ac5e021fa7939c
Web page

ASoC: codecs: simple-mux: Fix enum control bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/164dcbec9632ca93ae313e6da6e4e05584fa0f02
Web page

ASoC: codecs: simple-mux: Fix enum control bounds check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/05ef77f02607a3dc5d7f9762cb990f76843315d4

Vendor Advisories for CVE-2026-64243(1)

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

Patch Availability(18)

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 rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)
  • every version up to 6.1.176-1: fixed in 6.1.176-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (146 versions)
  • every version up to 7.0.12-1: fixed in 7.0.12-1
—

Weakness Classification(2)

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

All Vendor Advisories

(18)

Data Freshness Timeline

(refreshed 8× in last 7d / 39× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 380 rows 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 280 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  4. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  5. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  6. 2026-11-08 16:28 UTCEchelonGraph re-scored
  7. 2026-11-08 16:28 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  8. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  10. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  11. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-11-03 15:29 UTCEchelonGraph re-scored
  14. 2026-11-03 15:29 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  15. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-10-27 18:33 UTCEchelonGraph re-scored
  22. 2026-10-27 18:33 UTCVendor advisory
  23. 2026-10-27 18:33 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  24. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
Show 75 more
  1. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-25 14:12 UTCEchelonGraph re-scored
  3. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  4. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-10-19 21:37 UTCEchelonGraph re-scored
  7. 2026-10-19 21:37 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  8. 2026-10-19 20:35 UTCEchelonGraph re-scored
  9. 2026-10-19 20:35 UTCVendor advisory
  10. 2026-10-19 20:35 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  11. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-18 03:22 UTCEchelonGraph re-scored
  14. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-10-16 17:16 UTCEchelonGraph re-scored
  16. 2026-10-16 17:16 UTCVendor advisory
  17. 2026-10-16 17:16 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  18. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-16 15:53 UTCEchelonGraph re-scored
  20. 2026-10-16 15:53 UTCVendor advisory
  21. 2026-10-16 15:52 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-10-13 11:43 UTCEchelonGraph re-scored
  26. 2026-10-13 11:43 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  27. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  28. 2026-10-12 15:48 UTCEchelonGraph re-scored
  29. 2026-10-11 19:32 UTCEchelonGraph re-scored
  30. 2026-10-11 16:48 UTCEchelonGraph re-scored
  31. 2026-10-11 14:09 UTCEchelonGraph re-scored
  32. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  33. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  34. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  35. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  36. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  37. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  38. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-10-04 07:43 UTCEchelonGraph re-scored
  41. 2026-10-04 07:43 UTCVendor advisory
  42. 2026-10-04 07:43 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  43. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  44. 2026-10-03 03:19 UTCEchelonGraph re-scored
  45. 2026-10-03 03:19 UTCVendor advisory
  46. 2026-10-03 03:19 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  47. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  49. 2026-10-01 06:00 UTCEchelonGraph re-scored
  50. 2026-10-01 06:00 UTCVendor advisory
  51. 2026-10-01 06:00 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  52. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  53. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  54. 2026-09-28 04:28 UTCEchelonGraph re-scored
  55. 2026-09-28 04:28 UTCVendor advisory
  56. 2026-09-28 04:28 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  57. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  58. 2026-09-25 10:09 UTCEchelonGraph re-scored
  59. 2026-09-25 10:09 UTCVendor advisory
  60. 2026-09-25 10:09 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  61. 2026-09-24 09:42 UTCVendor advisory
  62. 2026-09-24 09:42 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  63. 2026-09-23 22:18 UTCEchelonGraph re-scored
  64. 2026-09-23 22:18 UTCVendor advisory
  65. 2026-09-23 22:18 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  66. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  67. 2026-09-23 09:24 UTCVendor advisory
  68. 2026-09-23 09:24 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  69. 2026-09-22 22:15 UTCEchelonGraph re-scored
  70. 2026-09-22 22:15 UTCVendor advisory
  71. 2026-09-22 22:14 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  72. 2026-09-20 01:40 UTCEchelonGraph re-scored
  73. 2026-09-20 01:40 UTCVendor advisory
  74. 2026-09-20 01:40 UTCGHSA enrichmentGHSA-g8x3-7685-9cvh · GitHub severity HIGH · GitHub CVSS 7.1
  75. 2026-09-18 22:28 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-64243?
CVE-2026-64243 is a high-severity vulnerability; its CVE record was published on July 24, 2026. In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: simple-mux: Fix enum control bounds check simple_mux_control_put() rejects values greater than e->items, but enum control values are zero based. For the two-entry mux used by this driver, valid values are 0 and 1, so…
When was the CVE record for CVE-2026-64243 published?
The CVE record for CVE-2026-64243 was published on July 24, 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 November 8, 2026; the record at its source may have been updated since.
Is CVE-2026-64243 actively exploited?
CVE-2026-64243 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-2026-64243?
CVE-2026-64243 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-64243?
A fix for CVE-2026-64243 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64243 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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