CVE-2026-64094

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:

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface

Without rtnl_lock held, a hardif might be retrieved as primary interface of a meshif, but then (while operating on this interface) getting decoupled from the mesh interface. In this case, the meshif still exists but the pointer from the primary hardif to the meshif is set to NULL.

The mesh_iface must be checked first to be non-NULL before continuing to send an ARP request using meshif.

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
5%
KEV
Not listed

Published

July 19, 2026

Last Modified

August 11, 2026

Advisory Details (8)

Auto-updated Aug 11, 2026
No patch confirmed yet.
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33
generic

batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45

Vendor Advisories for CVE-2026-64094(1)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-30ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ 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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
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 (138 versions)7.0.12-1—

Weakness Classification(1)

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

All Vendor Advisories

(5)

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 18× in last 7d / 78× 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 108 total refreshes for this CVE.

  1. 2026-08-30 02:47 UTCEG score recompute
  2. 2026-08-30 02:47 UTCVendor advisory
  3. 2026-08-30 02:47 UTCGHSA enrichment
  4. 2026-08-30 01:22 UTCEPSS rescore
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-27 11:48 UTCEG score recompute
  7. 2026-08-27 11:48 UTCVendor advisory
  8. 2026-08-27 11:48 UTCGHSA enrichment
  9. 2026-08-26 14:46 UTCEPSS rescore
  10. 2026-08-26 05:45 UTCEG score recompute
  11. 2026-08-26 05:45 UTCVendor advisory
  12. 2026-08-26 05:45 UTCGHSA enrichment
  13. 2026-08-25 13:49 UTCEPSS rescore
  14. 2026-08-25 04:30 UTCEG score recompute
  15. 2026-08-25 04:30 UTCVendor advisory
  16. 2026-08-25 04:30 UTCGHSA enrichment
  17. 2026-08-24 03:43 UTCVendor advisory
  18. 2026-08-24 03:43 UTCGHSA enrichment
  19. 2026-08-23 01:22 UTCVendor advisory
  20. 2026-08-23 01:21 UTCGHSA enrichment
  21. 2026-08-22 00:34 UTCEG score recompute
  22. 2026-08-22 00:34 UTCVendor advisory
  23. 2026-08-22 00:34 UTCGHSA enrichment
  24. 2026-08-21 23:49 UTCEPSS rescore
  25. 2026-08-20 23:46 UTCEG score recompute
Show 75 more
  1. 2026-08-20 23:46 UTCVendor advisory
  2. 2026-08-20 23:45 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-19 22:58 UTCEG score recompute
  5. 2026-08-19 22:58 UTCVendor advisory
  6. 2026-08-19 22:58 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-18 21:55 UTCEG score recompute
  9. 2026-08-18 21:55 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-17 21:07 UTCEG score recompute
  12. 2026-08-17 21:07 UTCVendor advisory
  13. 2026-08-17 21:07 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-16 20:19 UTCEG score recompute
  16. 2026-08-16 20:19 UTCVendor advisory
  17. 2026-08-16 20:19 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-15 19:31 UTCEG score recompute
  20. 2026-08-15 19:31 UTCVendor advisory
  21. 2026-08-15 19:31 UTCGHSA enrichment
  22. 2026-08-15 01:30 UTCEPSS rescore
  23. 2026-08-14 18:43 UTCEG score recompute
  24. 2026-08-14 18:43 UTCVendor advisory
  25. 2026-08-14 18:43 UTCGHSA enrichment
  26. 2026-08-13 22:00 UTCEPSS rescore
  27. 2026-08-13 17:55 UTCVendor advisory
  28. 2026-08-13 17:55 UTCGHSA enrichment
  29. 2026-08-12 17:04 UTCEG score recompute
  30. 2026-08-12 17:04 UTCVendor advisory
  31. 2026-08-12 17:04 UTCGHSA enrichment
  32. 2026-08-12 13:51 UTCEPSS rescore
  33. 2026-08-11 16:15 UTCEG score recompute▲ 5.50
  34. 2026-08-11 16:15 UTCVendor advisory
  35. 2026-08-11 16:15 UTCGHSA enrichment
  36. 2026-08-11 16:15 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  37. 2026-08-11 00:00 UTCEPSS rescore
  38. 2026-08-09 13:47 UTCEPSS rescore
  39. 2026-08-09 06:27 UTCVendor advisory
  40. 2026-08-09 06:27 UTCGHSA enrichment
  41. 2026-08-08 16:37 UTCEPSS rescore
  42. 2026-08-06 13:47 UTCEPSS rescore
  43. 2026-08-06 01:27 UTCVendor advisory
  44. 2026-08-06 01:27 UTCGHSA enrichment
  45. 2026-08-05 19:17 UTCEPSS rescore
  46. 2026-08-05 19:17 UTCEPSS rescore
  47. 2026-08-04 15:10 UTCEPSS rescore
  48. 2026-08-04 10:39 UTCEPSS rescore
  49. 2026-08-03 10:36 UTCEPSS rescore
  50. 2026-08-02 20:27 UTCVendor advisory
  51. 2026-08-02 20:27 UTCGHSA enrichment
  52. 2026-08-02 02:27 UTCEPSS rescore
  53. 2026-08-01 04:16 UTCEPSS rescore
  54. 2026-07-30 16:28 UTCEPSS rescore
  55. 2026-07-30 15:26 UTCEG score recompute
  56. 2026-07-30 15:26 UTCGHSA enrichment
  57. 2026-07-30 01:30 UTCEPSS rescore
  58. 2026-07-30 01:30 UTCEPSS rescore
  59. 2026-07-29 15:54 UTCGHSA enrichment
  60. 2026-07-28 15:37 UTCEPSS rescore
  61. 2026-07-27 14:14 UTCEPSS rescore
  62. 2026-07-26 14:54 UTCEPSS rescore
  63. 2026-07-26 14:54 UTCEPSS rescore
  64. 2026-07-26 10:53 UTCEG score recompute
  65. 2026-07-26 10:53 UTCVendor advisory
  66. 2026-07-26 10:53 UTCGHSA enrichment
  67. 2026-07-25 14:18 UTCEPSS rescore
  68. 2026-07-25 14:18 UTCEPSS rescore
  69. 2026-07-24 14:18 UTCEPSS rescore
  70. 2026-07-24 14:18 UTCEPSS rescore
  71. 2026-07-23 14:18 UTCEPSS rescore
  72. 2026-07-23 14:18 UTCEPSS rescore
  73. 2026-07-23 03:22 UTCEG score recompute
  74. 2026-07-22 14:08 UTCEPSS rescore
  75. 2026-07-22 14:08 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-64094?
CVE-2026-64094 is a medium vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface Without rtnl_lock held, a hardif might be retrieved as primary interface of a meshif, but then (while operating on this interface) getting decoupled from the…
When was CVE-2026-64094 disclosed?
CVE-2026-64094 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64094 actively exploited?
CVE-2026-64094 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 95.0% of all scored CVEs.
What is the CVSS score of CVE-2026-64094?
CVE-2026-64094 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-64094?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64094, 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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