CVE-2026-53150

MEDIUMNVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-06-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: 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: Reject zero-length property entries in validator

tb_property_entry_valid() accepts entries with length == 0 for DIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes validation but causes an underflow in the null-termination logic:

property->value.text[property->length * 4 - 1] = '\0';

When property->length is 0 this writes to offset -1 relative to the allocation.

Reject zero-length entries early in the validator since they have no valid representation in the XDomain property protocol.

CVSS v3
5.5
EG Score
5.5(high)
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
2.8%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 6, 2026

Advisory Details (8)

Auto-updated Jul 9, 2026
No patch confirmed yet.
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92
generic

thunderbolt: Reject zero-length property entries in validator - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b

Vendor Advisories for CVE-2026-53150(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 68× 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. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:19 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 02:29 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 13:30 UTCGHSA enrichment
  12. 2026-07-15 16:57 UTCEPSS rescore
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 12:23 UTCVendor advisory
  15. 2026-07-15 12:23 UTCGHSA enrichment
  16. 2026-07-15 02:00 UTCEPSS rescore
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-14 11:18 UTCVendor advisory
  19. 2026-07-14 11:17 UTCGHSA enrichment
  20. 2026-07-13 22:31 UTCEPSS rescore
  21. 2026-07-13 10:13 UTCGHSA enrichment
  22. 2026-07-13 06:13 UTCEPSS rescore
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-12 08:49 UTCVendor advisory
  25. 2026-07-12 08:49 UTCGHSA enrichment
Show 43 more
  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-11 07:44 UTCVendor advisory
  5. 2026-07-11 07:44 UTCGHSA enrichment
  6. 2026-07-10 06:39 UTCVendor advisory
  7. 2026-07-10 06:39 UTCGHSA enrichment
  8. 2026-07-09 19:10 UTCEPSS rescore
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-09 05:30 UTCEG score recompute▲ 5.50
  11. 2026-07-09 05:30 UTCVendor advisory
  12. 2026-07-09 05:29 UTCGHSA enrichment
  13. 2026-07-08 15:16 UTCEPSS rescore
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-07 13:46 UTCEPSS rescore
  16. 2026-07-07 13:46 UTCEPSS rescore
  17. 2026-07-06 18:21 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  18. 2026-07-06 16:27 UTCEPSS rescore
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 11:18 UTCVendor advisory
  21. 2026-07-06 11:18 UTCGHSA enrichment
  22. 2026-07-06 02:23 UTCEPSS rescore
  23. 2026-07-06 02:23 UTCEPSS rescore
  24. 2026-07-05 02:31 UTCEPSS rescore
  25. 2026-07-05 02:30 UTCEPSS rescore
  26. 2026-07-04 06:31 UTCEPSS rescore
  27. 2026-07-04 06:31 UTCEPSS rescore
  28. 2026-07-03 16:46 UTCVendor advisory
  29. 2026-07-03 16:46 UTCGHSA enrichment
  30. 2026-07-01 15:07 UTCEPSS rescore
  31. 2026-06-30 23:22 UTCEPSS rescore
  32. 2026-06-30 22:33 UTCVendor advisory
  33. 2026-06-30 22:33 UTCGHSA enrichment
  34. 2026-06-29 14:06 UTCEPSS rescore
  35. 2026-06-29 14:06 UTCEPSS rescore
  36. 2026-06-28 14:07 UTCEPSS rescore
  37. 2026-06-28 04:56 UTCEPSS rescore
  38. 2026-06-28 04:56 UTCEPSS rescore
  39. 2026-06-28 04:21 UTCGHSA enrichment
  40. 2026-06-27 03:08 UTCEPSS rescore
  41. 2026-06-25 13:49 UTCEPSS rescore
  42. 2026-06-25 10:09 UTCEG score recompute
  43. 2026-06-25 10:09 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-53150?
CVE-2026-53150 is a medium vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Reject zero-length property entries in validator tbpropertyentry_valid() accepts entries with length == 0 for DIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes validation but causes an underflow in the…
When was CVE-2026-53150 disclosed?
CVE-2026-53150 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-2026-53150 actively exploited?
CVE-2026-53150 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53150?
CVE-2026-53150 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53150?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53150, 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

Explore the affected products and dependency analysis for CVE-2026-53150

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