CVE-2026-45834

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-26. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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:

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()

Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().

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
2%
KEV
Not listed

Published

May 26, 2026

Last Modified

July 24, 2026

Advisory Details (8)

Auto-updated Jun 26, 2026
No patch confirmed yet.
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c88c185ae0a1067823661b220aeea613df2c127b
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a2dcf1a61d056aef15b63c6eae9441344d624389
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/85426e97dc72f2088ba6d27e74cd58c3fbd43e31
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5105f3e6b2df619c635b5f6a49fac131a36c7952
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2ff1a41a912de8517b4482e946dd951b7d80edbf
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1b1c0da227bf63479bac9982fc8d12df9aaea0fb
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1810e42ff6716f320c7269d5850eca48b07b7427
generic

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0c17c8832562b2aac288e89cefd0f46074f54bcb

Vendor Advisories for CVE-2026-45834(2)

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

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-23ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-23ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-23ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-aws-edge (5.15.0.1112.119~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-23ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1056.57~22.04.2) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
linuxKernel @ 5.10.258—osv

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 ... 6.12.88-1~bpo12+1 (21 versions)6.12.88-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (133 versions)7.0.7-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(24)

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 / 65× 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 199 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-45834?
CVE-2026-45834 is a medium vulnerability published on May 26, 2026. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2capsockstatechangecb() Add the same NULL guard already present in l2capsockresumecb() and l2capsockreadycb().
When was CVE-2026-45834 disclosed?
CVE-2026-45834 was first published in the National Vulnerability Database on May 26, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45834 actively exploited?
CVE-2026-45834 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 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-45834?
CVE-2026-45834 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45834?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45834, 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-2026-45834

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