CVE-2026-53149

HIGHNVD 7.17.1
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

thunderbolt: Bound root directory content to block size

__tb_property_parse_dir() does not check that content_offset + content_len fits within block_len for the root directory case. When rootdir->length equals or exceeds block_len - 2, the entry loop reads past the allocated property block.

Add a bounds check after computing content_offset and content_len to reject directories whose content extends past the block.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity71% × 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

July 6, 2026

Advisory Details (8)

Auto-updated Jul 7, 2026
No patch confirmed yet.
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cbeb68cbaa0a6f979ef428a7f2d0268c082ba166
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b212bc161d8a9937b42153723a4a3f2f74fab528
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/65423079c7420e3dbf9a7aa345c243a3f5752e5d
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/60ba6217460792356a238299edd675d91d46bab4
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5c7657d38d07268124782f03519f07c22a5814fb
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4d0b1524caadb04c10a71f3f88692c63dcb39115
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1912be23daf4afc8d24ce916021ab68ca4c679db
generic

thunderbolt: Bound root directory content to block size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0a32040a48db8cf35de48b85d6115df5623e4964

Vendor Advisories for CVE-2026-53149(2)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oem-7.0 (7.0.0-1010.10) @ resolute2026-08-30ubuntu

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

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

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 5× in last 7d / 84× 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 276 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53149?
CVE-2026-53149 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size tbpropertyparsedir() does not check that contentoffset + contentlen fits within blocklen for the root directory case. When rootdir->length equals or exceeds block_len - 2, the…
When was CVE-2026-53149 disclosed?
CVE-2026-53149 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53149 actively exploited?
CVE-2026-53149 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 97.4% of all scored CVEs.
What is the CVSS score of CVE-2026-53149?
CVE-2026-53149 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-53149?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53149, 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-2026-53149

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