CVE-2026-43125

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-06. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

dlm: validate length in dlm_search_rsb_tree

The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-bounds write in dlm_search_rsb_tree().

Add length validation to prevent potential buffer overflow.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

May 6, 2026

Last Modified

August 20, 2026

Advisory Details (13)

Auto-updated Aug 20, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:34094
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:33900
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support

https://access.redhat.com/errata/RHSA-2026:33899
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:25217
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:25121
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:25120
generic

dlm: validate length in dlm_search_rsb_tree - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71
generic

dlm: validate length in dlm_search_rsb_tree - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438
generic

dlm: validate length in dlm_search_rsb_tree - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6
generic

dlm: validate length in dlm_search_rsb_tree - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882
redhat

Affected: Red Hat Enterprise Linux 10",

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43125.json
redhat Patch Available

2467234 – (CVE-2026-43125) CVE-2026-43125 kernel: dlm: validate length in dlm_search_rsb_tree

Affected: Red Hat Enterprise Linux 8

https://bugzilla.redhat.com/show_bug.cgi?id=2467234
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-43125

Vendor Advisories for CVE-2026-43125(19)

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

Patch Availability(21)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04 (6.17.0-40.40~24.04.1) @ noble2026-08-20ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.17.0-1017.19) @ questing2026-08-20ubuntu
ubuntulinux-tools-nvidia-hwe-24.04 (6.17.0-1026.26) @ noble2026-08-20ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-40.40) @ questing2026-08-20ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-08-20ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1028.28) @ noble2026-08-20ubuntu
ubuntulinux-tools-raspi-6.17 (6.17.0-1021.21) @ questing2026-08-20ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-08-20ubuntu
redhatkpatch-patch2026-08-19redhat
redhatkernel-rt-0:3.10.0-1160.155.1.rt56.1307.el72026-07-17redhat
redhatkernel-0:5.14.0-427.136.1.el9_42026-07-08redhat
redhatkernel-0:3.10.0-1160.154.1.el72026-07-06redhat
redhatkernel-0:4.18.0-477.150.1.el8_82026-07-06redhat
redhatkernel-0:4.18.0-372.198.1.el8_62026-07-01redhat
redhatkernel-0:5.14.0-284.178.1.el9_22026-07-01redhat
redhatkernel-rt-0:5.14.0-284.178.1.rt14.463.el9_22026-07-01redhat
redhatkernel-0:5.14.0-570.125.1.el9_62026-07-01redhat
redhatkernel-0:5.14.0-687.15.1.el9_82026-06-11redhat
redhatkernel-rt-0:4.18.0-553.132.1.rt7.473.el8_102026-06-10redhat
redhatkernel-0:4.18.0-553.132.1.el8_102026-06-10redhat
linuxKernel @ 6.12.75—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc5-1~exp1 (335 versions)——
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 (113 versions)6.19.6-1—

Weakness Classification(2)

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

Additional Vendor Advisories

(8)

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 36× in last 7d / 166× 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 343 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43125?
CVE-2026-43125 is a critical vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlmsearchrsb_tree The len parameter in dlmdumprsb_name() is not validated and comes from network messages. When it exceeds DLMRESNAMEMAXLEN, it can cause out-of-bounds write in dlmsearchrsb_tree(). Add…
When was CVE-2026-43125 disclosed?
CVE-2026-43125 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43125 actively exploited?
CVE-2026-43125 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 64.2% of all scored CVEs.
What is the CVSS score of CVE-2026-43125?
CVE-2026-43125 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-43125?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43125, 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-2026-43125

Explore →

Is Your Infrastructure Affected by CVE-2026-43125?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs