CVE-2026-64147

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-07-19. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

pds_core: fix debugfs_lookup dentry leak and error handling

debugfs_lookup() returns a dentry with an elevated reference count that must be released with dput(). The current code discards the returned dentry without calling dput(), causing a reference leak on every firmware reset recovery.

Additionally, when CONFIG_DEBUG_FS is disabled, debugfs_lookup() returns ERR_PTR(-ENODEV), not NULL. The current check passes for error pointers and would call dput() on an invalid pointer, causing a crash.

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 PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

July 19, 2026

Last Modified

August 17, 2026

Advisory Details (5)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

pds_core: fix debugfs_lookup dentry leak and error handling - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9
generic

pds_core: fix debugfs_lookup dentry leak and error handling - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32
generic

pds_core: fix debugfs_lookup dentry leak and error handling - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2
generic

pds_core: fix debugfs_lookup dentry leak and error handling - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fd
generic

pds_core: fix debugfs_lookup dentry leak and error handling - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0c

Vendor Advisories for CVE-2026-64147(1)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1067.75) @ noble2026-09-18ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-18ubuntu
ubuntulinux-virtual-6.8 (6.8.0-139.139) @ noble2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-18ubuntu

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

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (141 versions)7.0.12-1—

Weakness Classification(1)

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

All Vendor Advisories

(8)

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 13× in last 7d / 69× 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 144 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-64147?
CVE-2026-64147 is a medium vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: pdscore: fix debugfslookup dentry leak and error handling debugfs_lookup() returns a dentry with an elevated reference count that must be released with dput(). The current code discards the returned dentry without calling dput(),…
When was CVE-2026-64147 disclosed?
CVE-2026-64147 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64147 actively exploited?
CVE-2026-64147 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 97.2% of all scored CVEs.
What is the CVSS score of CVE-2026-64147?
CVE-2026-64147 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-64147?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64147, 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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