CVE-2026-64463

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 2026-07-25. 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

Also known asEUVD-2026-48807 (ENISA EUVD) · GHSA-fcgc-c7jf-cmfv (GitHub Security Advisories)Source: ENISA EUVD

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: 0.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres

rt1711h_probe() registers the TCPCI port before requesting the interrupt and enabling alert interrupts. If either of those later steps fails, the probe function returns without unregistering the TCPCI port. The explicit unregister currently only happens from the remove callback.

Register a devres action immediately after tcpci_register_port() succeeds, so tcpci_unregister_port() runs on later probe failures and on driver detach. Drop the remove callback to avoid unregistering the same port twice.

This issue was identified during our ongoing static-analysis research while reviewing kernel code.

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 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)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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
0.1%
EPSS %ILE
3rd
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 (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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 low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 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 low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 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 total (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 25, 2026

Last Modified

November 12, 2026

Advisory Details (5)

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

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5
Web page

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8
Web page

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d
Web page

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b
Web page

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6

Vendor Advisories for CVE-2026-64463(2)

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

Patch Availability(14)

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

(5 across 4 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.3~rc7-1~exp1 (375 versions)
  • every version on: no fix on record
—
linux-6.12—
  • every version up to 6.12.100-1~deb12u1: fixed in 6.12.100-1~deb12u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (500 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.95-1~bpo12+1 (30 versions)
  • every version up to 6.12.96-1: fixed in 6.12.96-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (162 versions)
  • every version up to 7.1.4-1: fixed in 7.1.4-1
—

Weakness Classification(1)

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

All Vendor Advisories

(14)

Data Freshness Timeline

(refreshed 8× in last 7d / 45× 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 339 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 239 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 20:48 UTCEchelonGraph re-scored
  2. 2026-11-12 20:48 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  3. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-11-10 20:19 UTCEchelonGraph re-scored
  5. 2026-11-10 20:19 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-11-03 18:28 UTCEchelonGraph re-scored
  14. 2026-11-03 18:28 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-10-30 13:29 UTCEchelonGraph re-scored
  21. 2026-10-30 13:29 UTCVendor advisory
  22. 2026-10-30 13:29 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  23. 2026-10-30 12:43 UTCEchelonGraph re-scored
  24. 2026-10-30 12:43 UTCVendor advisory
  25. 2026-10-30 12:43 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
Show 75 more
  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-27 18:56 UTCEchelonGraph re-scored
  4. 2026-10-27 18:56 UTCVendor advisory
  5. 2026-10-27 18:56 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-10-25 14:12 UTCEchelonGraph re-scored
  10. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-10-19 21:40 UTCEchelonGraph re-scored
  16. 2026-10-19 21:40 UTCVendor advisory
  17. 2026-10-19 21:39 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  18. 2026-10-19 20:43 UTCEchelonGraph re-scored
  19. 2026-10-19 20:43 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  20. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-10-18 03:22 UTCEchelonGraph re-scored
  23. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-10-16 17:14 UTCEchelonGraph re-scored
  25. 2026-10-16 17:14 UTCVendor advisory
  26. 2026-10-16 17:13 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  27. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  28. 2026-10-16 15:50 UTCEchelonGraph re-scored
  29. 2026-10-16 15:50 UTCVendor advisory
  30. 2026-10-16 15:50 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  31. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  32. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  33. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  34. 2026-10-13 11:40 UTCEchelonGraph re-scored
  35. 2026-10-13 11:39 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  36. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  37. 2026-10-12 15:48 UTCEchelonGraph re-scored
  38. 2026-10-11 19:32 UTCEchelonGraph re-scored
  39. 2026-10-11 16:47 UTCEchelonGraph re-scored
  40. 2026-10-11 14:09 UTCEchelonGraph re-scored
  41. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  42. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  46. 2026-10-07 04:23 UTCEchelonGraph re-scored
  47. 2026-10-07 04:23 UTCVendor advisory
  48. 2026-10-07 04:23 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  49. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  52. 2026-10-04 07:27 UTCEchelonGraph re-scored
  53. 2026-10-04 07:27 UTCVendor advisory
  54. 2026-10-04 07:27 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-10-02 18:31 UTCEchelonGraph re-scored
  57. 2026-10-02 18:31 UTCVendor advisory
  58. 2026-10-02 18:31 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-10-01 15:01 UTCVendor advisory
  62. 2026-10-01 15:00 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-10-01 03:59 UTCEchelonGraph re-scored
  64. 2026-10-01 03:59 UTCVendor advisory
  65. 2026-10-01 03:59 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  67. 2026-09-29 07:59 UTCEchelonGraph re-scored
  68. 2026-09-29 07:59 UTCVendor advisory
  69. 2026-09-29 07:59 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  70. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  71. 2026-09-28 04:08 UTCEchelonGraph re-scored
  72. 2026-09-28 04:08 UTCVendor advisory
  73. 2026-09-28 04:08 UTCGHSA enrichmentGHSA-fcgc-c7jf-cmfv · GitHub severity HIGH · GitHub CVSS 7.8
  74. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  75. 2026-09-25 07:38 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-64463?
CVE-2026-64463 is a high-severity vulnerability; its CVE record was published on July 25, 2026. In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpci_rt1711h: unregister TCPCI port with devres rt1711h_probe() registers the TCPCI port before requesting the interrupt and enabling alert interrupts. If either of those later steps fails, the probe function returns…
When was the CVE record for CVE-2026-64463 published?
The CVE record for CVE-2026-64463 was published on July 25, 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 12, 2026; the record at its source may have been updated since.
Is CVE-2026-64463 actively exploited?
CVE-2026-64463 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64463?
CVE-2026-64463 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-2026-64463?
A fix for CVE-2026-64463 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64463 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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