CVE-2026-53189

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

mm/huge_memory: update file PMD counter before folio_put()

__split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio_put() drops the last reference, mm_counter_file() can later read freed folio state via folio_test_swapbacked().

Move the counter update before folio_put().

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

June 25, 2026

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Jun 28, 2026
No patch confirmed yet.
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59
generic

mm/huge_memory: update file PMD counter before folio_put() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877

Vendor Advisories for CVE-2026-53189(5)

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-nvidia-hwe-24.04-edge (7.0.0-1018.18~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-31.31) @ resolute2026-09-18ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
redhatkernel-0:6.12.0-211.50.1.el10_22026-09-01redhat
redhatkernel-0:4.18.0-553.157.1.el8_102026-08-20redhat
redhatkernel-0:5.14.0-687.41.1.el9_82026-08-20redhat
redhatkernel-rt-0:4.18.0-553.157.1.rt7.498.el8_102026-08-20redhat

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:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
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 (145 versions)7.0.13-1—

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 15× in last 7d / 58× 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 246 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53189?
CVE-2026-53189 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: update file PMD counter before folioput() splithugepmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio_put() drops the last reference, mmcounterfile() can later…
When was CVE-2026-53189 disclosed?
CVE-2026-53189 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53189 actively exploited?
CVE-2026-53189 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 97.0% of all scored CVEs.
What is the CVSS score of CVE-2026-53189?
CVE-2026-53189 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53189?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53189, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53189

Explore →

Is Your Infrastructure Affected by CVE-2026-53189?

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

Start Free Scan →Browse All CVEs