CVE-2025-37833

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 5.5 from GitHub Security Advisory published 2025-05-08. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads

Fix niu_try_msix() to not cause a fatal trap on sparc systems.

Set PCI_DEV_FLAGS_MSIX_TOUCH_ENTRY_DATA_FIRST on the struct pci_dev to work around a bug in the hardware or firmware.

For each vector entry in the msix table, niu chips will cause a fatal trap if any registers in that entry are read before that entries' ENTRY_DATA register is written to. Testing indicates writes to other registers are not sufficient to prevent the fatal trap, however the value does not appear to matter. This only needs to happen once after power up, so simply rebooting into a kernel lacking this fix will NOT cause the trap.

NON-RESUMABLE ERROR: Reporting on cpu 64 NON-RESUMABLE ERROR: TPC [0x00000000005f6900] NON-RESUMABLE ERROR: RAW [4010000000000016:00000e37f93e32ff:0000000202000080:ffffffffffffffff NON-RESUMABLE ERROR: 0000000800000000:0000000000000000:0000000000000000:0000000000000000] NON-RESUMABLE ERROR: handle [0x4010000000000016] stick [0x00000e37f93e32ff] NON-RESUMABLE ERROR: type [precise nonresumable] NON-RESUMABLE ERROR: attrs [0x02000080] < ASI sp-faulted priv > NON-RESUMABLE ERROR: raddr [0xffffffffffffffff] NON-RESUMABLE ERROR: insn effective address [0x000000c50020000c] NON-RESUMABLE ERROR: size [0x8] NON-RESUMABLE ERROR: asi [0x00] CPU: 64 UID: 0 PID: 745 Comm: kworker/64:1 Not tainted 6.11.5 #63 Workqueue: events work_for_cpu_fn TSTATE: 0000000011001602 TPC: 00000000005f6900 TNPC: 00000000005f6904 Y: 00000000 Not tainted TPC: g0: 00000000000002e9 g1: 000000000000000c g2: 000000c50020000c g3: 0000000000000100 g4: ffff8000470307c0 g5: ffff800fec5be000 g6: ffff800047a08000 g7: 0000000000000000 o0: ffff800014feb000 o1: ffff800047a0b620 o2: 0000000000000011 o3: ffff800047a0b620 o4: 0000000000000080 o5: 0000000000000011 sp: ffff800047a0ad51 ret_pc: 00000000005f7128 RPC: <__pci_enable_msix_range+0x3cc/0x460> l0: 000000000000000d l1: 000000000000c01f l2: ffff800014feb0a8 l3: 0000000000000020 l4: 000000000000c000 l5: 0000000000000001 l6: 0000000020000000 l7: ffff800047a0b734 i0: ffff800014feb000 i1: ffff800047a0b730 i2: 0000000000000001 i3: 000000000000000d i4: 0000000000000000 i5: 0000000000000000 i6: ffff800047a0ae81 i7: 00000000101888b0 I7: Call Trace: [<00000000101888b0>] niu_try_msix.constprop.0+0xc0/0x130 [niu] [<000000001018f840>] niu_get_invariants+0x183c/0x207c [niu] [<00000000101902fc>] niu_pci_init_one+0x27c/0x2fc [niu] [<00000000005ef3e4>] local_pci_probe+0x28/0x74 [<0000000000469240>] work_for_cpu_fn+0x8/0x1c [<000000000046b008>] process_scheduled_works+0x144/0x210 [<000000000046b518>] worker_thread+0x13c/0x1c0 [<00000000004710e0>] kthread+0xb8/0xc8 [<00000000004060c8>] ret_from_fork+0x1c/0x2c [<0000000000000000>] 0x0 Kernel panic - not syncing: Non-resumable error.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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 (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 8, 2025

Last Modified

September 14, 2026

Advisory Details (5)

Auto-updated Sep 14, 2026
Patch available.
Web page

net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fbb429ddff5c8e479edcc7dde5a542c9295944e6
Web page

net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/64903e4849a71cf7f7c7e5d45225ccefc1280929
Web page

net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c187aaa9e79b4b6d86ac7ba941e579ad33df5538
Web page

net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0afd48b173bebd6d94769ba2c91bd7404b9eb3c9
Web page

net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/52a266008a9450e4222994666b4510c026fbb03c

Vendor Advisories for CVE-2025-37833(2)

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

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-22.22) @ plucky2026-09-14ubuntu
ubuntulinux-tools-oracle-64k (6.14.0-1007.7) @ plucky2026-09-14ubuntu
ubuntulinux-tools-azure (6.14.0-1007.7) @ plucky2026-09-14ubuntu
linuxKernel @ 6.1.188 (fixes >=5.14.0)—osv
linuxKernel @ 6.12.26 (fixes >=5.14.0)—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 rangeFix by version rangeDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (353 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.27-1: fixed in 6.12.27-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.27-1: fixed in 6.12.27-1
—

Additional Vendor Advisories

(3)

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 11× in last 7d / 34× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 90 of 156 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 10 repeat rows among the latest 100 are merged into the row they repeat. The 66 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 17:08 UTCEG score recompute
  2. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-10-11 20:41 UTCEG score recompute
  4. 2026-10-11 18:51 UTCEG score recompute
  5. 2026-10-11 15:28 UTCEG score recompute
  6. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  7. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  10. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  12. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-10-03 22:28 UTCOSV refresh
  15. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  23. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  24. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  25. 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.2% · 7th percentile
Show 65 more
  1. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-09-14 12:36 UTCVendor advisory
  4. 2026-09-14 12:36 UTCGHSA enrichmentGHSA-3vhw-gffp-6qr6 · GitHub CVSS 5.5
  5. 2026-09-14 12:02 UTCEG score recompute
  6. 2026-09-14 12:02 UTCVendor advisory
  7. 2026-09-14 12:02 UTCGHSA enrichmentGHSA-3vhw-gffp-6qr6 · GitHub CVSS 5.5
  8. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-09-13 12:54 UTCOSV refresh
  10. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  12. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-08-25 14:10 UTCOSV refresh
  25. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  26. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  27. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  28. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  29. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  30. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  31. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  32. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  33. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  34. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  35. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  36. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  37. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  38. 2026-08-09 06:27 UTCOSV refresh
  39. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  41. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  42. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  43. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  44. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  45. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  46. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  47. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  49. 2026-07-28 15:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  50. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  51. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  52. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  53. 2026-07-24 06:41 UTCOSV refresh
  54. 2026-07-23 02:54 UTCEG score recompute
  55. 2026-07-22 14:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  56. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  57. 2026-07-20 17:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  58. 2026-07-19 14:30 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  59. 2026-07-19 02:28 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  60. 2026-07-16 17:02 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  61. 2026-07-15 16:57 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  62. 2026-07-15 01:59 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  63. 2026-07-13 22:29 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  64. 2026-07-13 06:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  65. 2026-07-11 08:27 UTCEPSS rescoreEPSS 0.2% · 4th percentile

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2025-37833?
CVE-2025-37833 is a medium-severity vulnerability; its CVE record was published on May 8, 2025. In the Linux kernel, the following vulnerability has been resolved: net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads Fix niutrymsix() to not cause a fatal trap on sparc systems. Set PCIDEVFLAGSMSIXTOUCHENTRYDATAFIRST on the struct pcidev to work around a bug in the hardware or…
When was the CVE record for CVE-2025-37833 published?
The CVE record for CVE-2025-37833 was published on May 8, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 14, 2026; the record at its source may have been updated since.
Is CVE-2025-37833 actively exploited?
CVE-2025-37833 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-37833?
CVE-2025-37833 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-37833?
A fix for CVE-2025-37833 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-37833 are linked in the Vendor Advisories panel on this page.

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