CVE-2026-43441

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-08. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled

When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never initialized because inet6_init() exits before ndisc_init() is called which initializes it. If bonding ARP/NS validation is enabled, an IPv6 NS/NA packet received on a slave can reach bond_validate_na(), which calls bond_has_this_ip6(). That path calls ipv6_chk_addr() and can crash in __ipv6_chk_addr_and_flags().

BUG: kernel NULL pointer dereference, address: 00000000000005d8 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:__ipv6_chk_addr_and_flags+0x69/0x170 Call Trace: ipv6_chk_addr+0x1f/0x30 bond_validate_na+0x12e/0x1d0 [bonding] ? __pfx_bond_handle_frame+0x10/0x10 [bonding] bond_rcv_validate+0x1a0/0x450 [bonding] bond_handle_frame+0x5e/0x290 [bonding] ? srso_alias_return_thunk+0x5/0xfbef5 __netif_receive_skb_core.constprop.0+0x3e8/0xe50 ? srso_alias_return_thunk+0x5/0xfbef5 ? update_cfs_rq_load_avg+0x1a/0x240 ? srso_alias_return_thunk+0x5/0xfbef5 ? __enqueue_entity+0x5e/0x240 __netif_receive_skb_one_core+0x39/0xa0 process_backlog+0x9c/0x150 __napi_poll+0x30/0x200 ? srso_alias_return_thunk+0x5/0xfbef5 net_rx_action+0x338/0x3b0 handle_softirqs+0xc9/0x2a0 do_softirq+0x42/0x60 __local_bh_enable_ip+0x62/0x70 __dev_queue_xmit+0x2d3/0x1000 ? srso_alias_return_thunk+0x5/0xfbef5 ? srso_alias_return_thunk+0x5/0xfbef5 ? packet_parse_headers+0x10a/0x1a0 packet_sendmsg+0x10da/0x1700 ? kick_pool+0x5f/0x140 ? srso_alias_return_thunk+0x5/0xfbef5 ? __queue_work+0x12d/0x4f0 __sys_sendto+0x1f3/0x220 __x64_sys_sendto+0x24/0x30 do_syscall_64+0x101/0xf80 ? exc_page_fault+0x6e/0x170 ? srso_alias_return_thunk+0x5/0xfbef5 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Fix this by checking ipv6_mod_enabled() before dispatching IPv6 packets to bond_na_rcv(). If IPv6 is disabled, return early from bond_rcv_validate() and avoid the path to ipv6_chk_addr().

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

May 8, 2026

Last Modified

August 5, 2026

Advisory Details (6)

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

net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cf6099ef493b94e140b0fad52482a78853115318
generic

net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c9c238066fb254dabf65e27379f93c56112c5b96
generic

net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c78f01abe535853f13f0b26cd5b1d2f19bf52e2f
generic

net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/95faa1459b83fa544191e82ccc73856f03b7741f
generic

net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/49dbfcb70eca5f6f9043594e1e323c74c39e3863
generic

net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/30021e969d48e5819d5ae56936c2f34c0f7ce997

Vendor Advisories for CVE-2026-43441(1)

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

Patch Availability(15)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
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-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ 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
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
linuxKernel @ 6.1.167—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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (119 versions)6.19.10-1—

Weakness Classification(1)

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

All Vendor Advisories

(14)

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 5× in last 7d / 74× 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 219 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. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-23 19:04 UTCEG score recompute
  11. 2026-08-23 19:04 UTCVendor advisory
  12. 2026-08-23 19:04 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-20 22:55 UTCEPSS rescore
  16. 2026-08-19 17:04 UTCEPSS rescore
  17. 2026-08-18 13:48 UTCEPSS rescore
  18. 2026-08-17 13:47 UTCEPSS rescore
  19. 2026-08-17 11:31 UTCEG score recompute
  20. 2026-08-17 11:31 UTCVendor advisory
  21. 2026-08-17 11:31 UTCGHSA enrichment
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 04:34 UTCEG score recompute
  24. 2026-08-16 04:34 UTCVendor advisory
  25. 2026-08-16 04:34 UTCGHSA enrichment
Show 75 more
  1. 2026-08-16 02:14 UTCEPSS rescore
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-15 00:47 UTCVendor advisory
  4. 2026-08-15 00:47 UTCGHSA enrichment
  5. 2026-08-14 13:57 UTCVendor advisory
  6. 2026-08-14 13:57 UTCGHSA enrichment
  7. 2026-08-14 03:08 UTCEG score recompute
  8. 2026-08-14 03:08 UTCVendor advisory
  9. 2026-08-14 03:08 UTCGHSA enrichment
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-13 03:33 UTCVendor advisory
  12. 2026-08-13 03:33 UTCGHSA enrichment
  13. 2026-08-12 16:44 UTCEG score recompute
  14. 2026-08-12 16:44 UTCVendor advisory
  15. 2026-08-12 16:44 UTCGHSA enrichment
  16. 2026-08-12 13:51 UTCEPSS rescore
  17. 2026-08-11 15:51 UTCEG score recompute
  18. 2026-08-11 15:51 UTCVendor advisory
  19. 2026-08-11 15:51 UTCGHSA enrichment
  20. 2026-08-11 13:43 UTCEPSS rescore
  21. 2026-08-11 01:17 UTCEG score recompute
  22. 2026-08-11 01:17 UTCVendor advisory
  23. 2026-08-11 01:17 UTCGHSA enrichment
  24. 2026-08-11 00:00 UTCEPSS rescore
  25. 2026-08-10 11:41 UTCVendor advisory
  26. 2026-08-10 11:41 UTCGHSA enrichment
  27. 2026-08-10 00:05 UTCEG score recompute
  28. 2026-08-10 00:05 UTCVendor advisory
  29. 2026-08-10 00:05 UTCGHSA enrichment
  30. 2026-08-09 13:46 UTCEPSS rescore
  31. 2026-08-09 13:15 UTCVendor advisory
  32. 2026-08-09 13:15 UTCGHSA enrichment
  33. 2026-08-09 02:24 UTCEG score recompute
  34. 2026-08-09 02:24 UTCVendor advisory
  35. 2026-08-09 02:24 UTCGHSA enrichment
  36. 2026-08-08 16:37 UTCEPSS rescore
  37. 2026-08-08 10:11 UTCVendor advisory
  38. 2026-08-08 10:11 UTCGHSA enrichment
  39. 2026-08-07 23:22 UTCEG score recompute
  40. 2026-08-07 23:22 UTCVendor advisory
  41. 2026-08-07 23:22 UTCGHSA enrichment
  42. 2026-08-07 12:32 UTCVendor advisory
  43. 2026-08-07 12:32 UTCGHSA enrichment
  44. 2026-08-07 01:43 UTCEG score recompute
  45. 2026-08-07 01:43 UTCVendor advisory
  46. 2026-08-07 01:43 UTCGHSA enrichment
  47. 2026-08-06 13:46 UTCEPSS rescore
  48. 2026-08-06 11:25 UTCVendor advisory
  49. 2026-08-06 11:24 UTCGHSA enrichment
  50. 2026-08-06 00:35 UTCEG score recompute
  51. 2026-08-06 00:35 UTCVendor advisory
  52. 2026-08-06 00:35 UTCGHSA enrichment
  53. 2026-08-05 19:17 UTCEPSS rescore
  54. 2026-08-05 13:45 UTCEG score recompute
  55. 2026-08-05 13:45 UTCVendor advisory
  56. 2026-08-05 13:45 UTCGHSA enrichment
  57. 2026-08-04 15:10 UTCEPSS rescore
  58. 2026-08-04 10:38 UTCEPSS rescore
  59. 2026-08-03 19:30 UTCEG score recompute
  60. 2026-08-03 19:30 UTCVendor advisory
  61. 2026-08-03 19:30 UTCGHSA enrichment
  62. 2026-08-03 10:36 UTCEPSS rescore
  63. 2026-08-03 00:39 UTCVendor advisory
  64. 2026-08-03 00:39 UTCGHSA enrichment
  65. 2026-08-02 13:37 UTCVendor advisory
  66. 2026-08-02 13:37 UTCGHSA enrichment
  67. 2026-08-02 02:47 UTCEG score recompute
  68. 2026-08-02 02:47 UTCVendor advisory
  69. 2026-08-02 02:47 UTCGHSA enrichment
  70. 2026-08-02 02:27 UTCEPSS rescore
  71. 2026-08-01 04:16 UTCEPSS rescore
  72. 2026-07-30 16:28 UTCEPSS rescore
  73. 2026-07-30 01:30 UTCEPSS rescore
  74. 2026-07-28 15:36 UTCEPSS rescore
  75. 2026-07-27 14:13 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-43441?
CVE-2026-43441 is a high vulnerability published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never initialized because inet6init() exits before ndiscinit() is called which initializes it. If…
When was CVE-2026-43441 disclosed?
CVE-2026-43441 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43441 actively exploited?
CVE-2026-43441 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 60.4% of all scored CVEs.
What is the CVSS score of CVE-2026-43441?
CVE-2026-43441 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-43441?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43441, 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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