CVE-2026-46137

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-28. the CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated 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:

mptcp: pm: ADD_ADDR rtx: fix potential data-race

This mptcp_pm_add_timer() helper is executed as a timer callback in softirq context. To avoid any data races, the socket lock needs to be held with bh_lock_sock().

If the socket is in use, retry again soon after, similar to what is done with the keepalive timer.

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 28, 2026

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5cd6e0ad79d2615264f63929f8b457ad97ae550d
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cc3c0399361efaaf7ae64262eb3f70829b1189c6
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2ad56e434199ca24a812bb353667aa1c3860f513
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/013dcdc1961543b9a3433466bc8c79a2f4ca75b5
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b35605e1f1e877038c8c9d499babbc891cdd234f
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/23079e0b7742ec114d3507c3e3aad01b7b69e4af
generic

mptcp: pm: ADD_ADDR rtx: fix potential data-race - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d9b272a85fe6b8f993e37915311e4038c814a533

Vendor Advisories for CVE-2026-46137(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-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-14ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-14ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-14ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-6.17 (6.17.0-42.42) @ noble2026-09-14ubuntu
linuxKernel @ 5.10.259—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 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (136 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 8× in last 7d / 37× 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 563 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-46137?
CVE-2026-46137 is a critical vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential data-race This mptcppmadd_timer() helper is executed as a timer callback in softirq context. To avoid any data races, the socket lock needs to be held with bhlocksock(). If the socket is in…
When was CVE-2026-46137 disclosed?
CVE-2026-46137 was first published in the National Vulnerability Database on May 28, 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-2026-46137 actively exploited?
CVE-2026-46137 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 63.5% of all scored CVEs.
What is the CVSS score of CVE-2026-46137?
CVE-2026-46137 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46137?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46137, 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-2026-46137

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