CVE-2026-53146

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

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

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

thunderbolt: Limit XDomain response copy to actual frame size

tb_xdomain_copy() copies req->response_size bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the valid frame data in the DMA pool buffer into stale contents from previous transactions.

Use the minimum of frame size and expected response size for the copy length.

CVSS v3
7.1
EG Score
7.1(high)
EPSS
15.3%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 6, 2026

Advisory Details (8)

Auto-updated Jun 29, 2026
No patch confirmed yet.
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fc261397295b8ad0654cec747b0ec25ea0011995
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c55da494dfb445fb28df3a9d293c2be6a299cd01
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b5daa920f44cb582272fc9bfaeb67408776cbaef
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7720654b4842bcdfeb64bc002f6186041849e1e7
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb
generic

thunderbolt: Limit XDomain response copy to actual frame size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/033dfa63bf6be2653441a1dccae4a8313a91bb9d

Vendor Advisories for CVE-2026-53146(2)

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

Data Freshness Timeline

(refreshed 49× in last 7d / 71× 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.

  1. 2026-07-06 18:40 UTCEG score recompute
  2. 2026-07-06 18:40 UTCVendor advisory
  3. 2026-07-06 18:40 UTCGHSA enrichment
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 06:13 UTCEG score recompute
  7. 2026-07-06 06:13 UTCVendor advisory
  8. 2026-07-06 06:13 UTCGHSA enrichment
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 17:43 UTCEG score recompute
  12. 2026-07-05 17:43 UTCVendor advisory
  13. 2026-07-05 17:43 UTCGHSA enrichment
  14. 2026-07-05 05:16 UTCEG score recompute
  15. 2026-07-05 05:16 UTCVendor advisory
  16. 2026-07-05 05:16 UTCGHSA enrichment
  17. 2026-07-05 02:31 UTCEPSS rescore
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-04 16:50 UTCEG score recompute
  20. 2026-07-04 16:50 UTCVendor advisory
  21. 2026-07-04 16:50 UTCGHSA enrichment
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-04 06:31 UTCEPSS rescore
  24. 2026-07-04 04:08 UTCEG score recompute
  25. 2026-07-04 04:08 UTCVendor advisory
Show 46 more
  1. 2026-07-04 04:08 UTCGHSA enrichment
  2. 2026-07-03 15:10 UTCEG score recompute
  3. 2026-07-03 15:10 UTCVendor advisory
  4. 2026-07-03 15:09 UTCGHSA enrichment
  5. 2026-07-03 02:39 UTCEG score recompute
  6. 2026-07-03 02:39 UTCVendor advisory
  7. 2026-07-03 02:39 UTCGHSA enrichment
  8. 2026-07-02 14:12 UTCEG score recompute
  9. 2026-07-02 14:12 UTCVendor advisory
  10. 2026-07-02 14:12 UTCGHSA enrichment
  11. 2026-07-02 01:46 UTCEG score recompute
  12. 2026-07-02 01:46 UTCVendor advisory
  13. 2026-07-02 01:46 UTCGHSA enrichment
  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-07-01 13:20 UTCEG score recompute
  16. 2026-07-01 13:20 UTCVendor advisory
  17. 2026-07-01 13:20 UTCGHSA enrichment
  18. 2026-07-01 00:54 UTCEG score recompute
  19. 2026-07-01 00:54 UTCVendor advisory
  20. 2026-07-01 00:54 UTCGHSA enrichment
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-30 12:27 UTCEG score recompute
  23. 2026-06-30 12:27 UTCVendor advisory
  24. 2026-06-30 12:27 UTCGHSA enrichment
  25. 2026-06-29 23:58 UTCEG score recompute
  26. 2026-06-29 23:58 UTCVendor advisory
  27. 2026-06-29 23:58 UTCGHSA enrichment
  28. 2026-06-29 14:06 UTCEPSS rescore
  29. 2026-06-29 14:06 UTCEPSS rescore
  30. 2026-06-29 11:32 UTCEG score recompute
  31. 2026-06-29 11:32 UTCVendor advisory
  32. 2026-06-29 11:32 UTCGHSA enrichment
  33. 2026-06-28 23:06 UTCEG score recompute
  34. 2026-06-28 23:06 UTCVendor advisory
  35. 2026-06-28 23:06 UTCGHSA enrichment
  36. 2026-06-28 14:07 UTCEPSS rescore
  37. 2026-06-28 10:40 UTCEG score recompute▲ 7.10
  38. 2026-06-28 10:40 UTCVendor advisory
  39. 2026-06-28 10:40 UTCGHSA enrichment
  40. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 7.1 · severity → HIGH
  41. 2026-06-28 04:56 UTCEPSS rescore
  42. 2026-06-28 04:56 UTCEPSS rescore
  43. 2026-06-27 03:08 UTCEPSS rescore
  44. 2026-06-25 13:49 UTCEPSS rescore
  45. 2026-06-25 10:09 UTCEG score recompute
  46. 2026-06-25 10:09 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-53146?
CVE-2026-53146 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Limit XDomain response copy to actual frame size tbxdomaincopy() copies req->response_size bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the…
When was CVE-2026-53146 disclosed?
CVE-2026-53146 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-2026-53146 actively exploited?
CVE-2026-53146 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53146?
CVE-2026-53146 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-53146?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53146, 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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