CVE-2026-31563

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-24. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

net: macb: Use dev_consume_skb_any() to free TX SKBs

The napi_consume_skb() function is not intended to be called in an IRQ disabled context. However, after commit 6bc8a5098bf4 ("net: macb: Fix tx_ptr_lock locking"), the freeing of TX SKBs is performed with IRQs disabled. To resolve the following call trace, use dev_consume_skb_any() for freeing TX SKBs: WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0x174/0x188, CPU#0: ksoftirqd/0/15 Modules linked in: CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 7.0.0-rc4-next-20260319-yocto-standard-dirty #37 PREEMPT Hardware name: ZynqMP ZCU102 Rev1.1 (DT) pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __local_bh_enable_ip+0x174/0x188 lr : local_bh_enable+0x24/0x38 sp : ffff800082b3bb10 x29: ffff800082b3bb10 x28: ffff0008031f3c00 x27: 000000000011ede0 x26: ffff000800a7ff00 x25: ffff800083937ce8 x24: 0000000000017a80 x23: ffff000803243a78 x22: 0000000000000040 x21: 0000000000000000 x20: ffff000800394c80 x19: 0000000000000200 x18: 0000000000000001 x17: 0000000000000001 x16: ffff000803240000 x15: 0000000000000000 x14: ffffffffffffffff x13: 0000000000000028 x12: ffff000800395650 x11: ffff8000821d1528 x10: ffff800081c2bc08 x9 : ffff800081c1e258 x8 : 0000000100000301 x7 : ffff8000810426ec x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : 0000000000000200 x0 : ffff8000810428dc Call trace: __local_bh_enable_ip+0x174/0x188 (P) local_bh_enable+0x24/0x38 skb_attempt_defer_free+0x190/0x1d8 napi_consume_skb+0x58/0x108 macb_tx_poll+0x1a4/0x558 __napi_poll+0x50/0x198 net_rx_action+0x1f4/0x3d8 handle_softirqs+0x16c/0x560 run_ksoftirqd+0x44/0x80 smpboot_thread_fn+0x1d8/0x338 kthread+0x120/0x150 ret_from_fork+0x10/0x20 irq event stamp: 29751 hardirqs last enabled at (29750): [] _raw_spin_unlock_irqrestore+0x44/0x88 hardirqs last disabled at (29751): [] _raw_spin_lock_irqsave+0x38/0x98 softirqs last enabled at (29150): [] handle_softirqs+0x504/0x560 softirqs last disabled at (29153): [] run_ksoftirqd+0x44/0x80

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
39.5%
KEV
Not listed

Published

April 24, 2026

Last Modified

July 14, 2026

Advisory Details (6)

Auto-updated Jun 6, 2026
No patch confirmed yet.
generic

net: macb: Use dev_consume_skb_any() to free TX SKBs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f4bc91398b579730284328322365afa77a9d568f
generic

net: macb: Use dev_consume_skb_any() to free TX SKBs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ca4d05afb4683d685bb2c6fccae4386c478f524a
generic

net: macb: Use dev_consume_skb_any() to free TX SKBs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/984350b37372f79f71d4f0a5264c640e40daf9ce
generic

net: macb: Use dev_consume_skb_any() to free TX SKBs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/92e7081f0c79d9073087e54bab745bb184192c2e
generic

net: macb: Use dev_consume_skb_any() to free TX SKBs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/78c8b090a3d5c1689dc989861b0163180db2b3f8
generic

net: macb: Use dev_consume_skb_any() to free TX SKBs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/647b8a2fe474474704110db6bd07f7a139e621eb

Vendor Advisories for CVE-2026-31563(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 41× 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 162 total refreshes for this CVE.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-31563?
CVE-2026-31563 is a high vulnerability published on April 24, 2026. In the Linux kernel, the following vulnerability has been resolved: net: macb: Use devconsumeskb_any() to free TX SKBs The napiconsumeskb() function is not intended to be called in an IRQ disabled context. However, after commit 6bc8a5098bf4 ("net: macb: Fix txptrlock locking"), the freeing of TX…
When was CVE-2026-31563 disclosed?
CVE-2026-31563 was first published in the National Vulnerability Database on April 24, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31563 actively exploited?
CVE-2026-31563 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-31563?
CVE-2026-31563 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-31563?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31563, 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.

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