CVE-2026-31417

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-13. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
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/x25: Fix overflow when accumulating packets

Add a check to ensure that x25_sock.fraglen does not overflow.

The fraglen also needs to be resetted when purging fragment_queue in x25_clear_queues().

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
38%
KEV
Not listed

Published

April 13, 2026

Last Modified

September 8, 2026

Advisory Details (8)

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

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f953f11ccf4afe6feb635c08145f4240d9a6b544
generic

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a1822cb524e89b4cd2cf0b82e484a2335496a6d9
generic

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/96fc16370b0bceb289c7e0479bd0540b81e257aa
generic

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8c92969c197b91c134be27dc3afb64ab468853a9
generic

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/798d613afb64b01a203f448fb0f43c37c6afe79d
generic

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e568835ea54a3e1d08e310e34f95d434e739477
generic

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4e2d1bcef78d21247fe8fef13bc7ed95885df2b5
generic

net/x25: Fix overflow when accumulating packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1734bd85c5e0a7a801295b729efb56b009cb8fc3

Vendor Advisories for CVE-2026-31417(2)

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

Patch Availability(27)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-08ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1056.57~22.04.2) @ jammy2026-09-08ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-08ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-08ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-08ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-08ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-08ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-08ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-08ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-08ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-09-08ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-08ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-08ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-08ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-08ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-08ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-08ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-08ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-08ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-08ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-08ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-08ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-08ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-08ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-09-08ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-09-08ubuntu
linuxKernel @ 5.10.253—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 (53 versions)5.10.257-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.164-1~deb11u1 (16 versions)6.1.170-1~deb11u1—
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 (125 versions)6.19.12-1—

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 / 32× 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 234 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-31417?
CVE-2026-31417 is a high vulnerability published on April 13, 2026. In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix overflow when accumulating packets Add a check to ensure that x25_sock.fraglen does not overflow. The fraglen also needs to be resetted when purging fragment_queue in x25clearqueues().
When was CVE-2026-31417 disclosed?
CVE-2026-31417 was first published in the National Vulnerability Database on April 13, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31417 actively exploited?
CVE-2026-31417 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 62.1% of all scored CVEs.
What is the CVSS score of CVE-2026-31417?
CVE-2026-31417 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-31417?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31417, 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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