vciy

CVE-2025-37840

INDEX BUILT · 2026-10-18

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mtd: rawnand: brcmnand: fix PM resume warning

CVE-2025-378404 of 4 sources documented this
28

rank 28 = 0 + 20 + 0 + 8 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00331  ·  without this subject the record ranks 28

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.8, from NVD  ·  without this subject the record ranks 8

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 28

How much of the world it touches

NVD CPE configurations

9 products in the CPE ranges  ·  without this subject the record ranks 20

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 28

Hindsight · the state

0.00331EPSSNOT IN KEVas of 2026-10-18
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2025-05-09, 514 days at 0.00, as of 2026-10-05. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

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Harm, if it fires from the vector and the weakness

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Reachneeds local access · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classNo CWE mapping in held sources.

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchkernel 5.10.237; kernel 5.15.181; kernel 5.4.293; kernel 6.1.135; kernel 6.12.24; kernel 6.13.12receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
BOD 26-04 deadlineIf the system is reachable from the internet: 14 days. If not: fix at the next system upgrade.derived
Show full BOD 26-04 deadline

CISA has not scored it, so the directive's own defaults apply: automatable no, technical impact total. Calendar days from the KEV listing or from when you find it on a system, whichever is first. Federal agencies are bound from 7 Dec 2026, and contracts often carry it to suppliers. The directive and its table

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD7.8 HIGHreceipt
Exploit probability0.00331 · top 75% of all CVEsreceipt
Blast breadth2 products across 2 vendorsderived
Assigned byLinuxreceipt
Recorded changes28 · last 18 Oct 2026derived

Affected & Fixed Versions as published

Affected productLinuxreceipt
Published rangeslinux kernel >= 4.16 < 5.4.293; linux kernel >= 5.5 < 5.10.237; linux kernel >= 5.11 < 5.15.181; linux kernel >= 5.16 < 6.1.135receipt
Show all 9 published ranges
linux kernel >= 4.16 < 5.4.293
linux kernel >= 5.5 < 5.10.237
linux kernel >= 5.11 < 5.15.181
linux kernel >= 5.16 < 6.1.135
linux kernel >= 6.2 < 6.6.88
linux kernel >= 6.7 < 6.12.24
linux kernel >= 6.13 < 6.13.12
linux kernel >= 6.14 < 6.14.3
debian linux 11.0

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$16,500over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$16,500 = $4.99M incident cost x 1 exposure x 0.00331 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

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What it is stated by the CNA

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: brcmnand: fix PM resume warning Fixed warning on PM resume as shown below caused due to uninitialized struct nand_operation that checks chip select field : WARN_ON(op->cs >= nanddev_ntargets(&chip->base) [ 14.588522] ------------[ cut here ]------------ [ 14.588529] WARNING: CPU: 0 PID: 1392 at drivers/mtd/nand/raw/internals.h:139 nand_reset_op+0x1e0/0x1f8 [ 14.588553] Modules linked in: bdc udc_core [ 14.588579] CPU: 0 UID: 0 PID: 1392 Comm: rtcwake Tainted: G W 6.14.0-rc4-g5394eea10651 #16 [ 14.588590] Tainted: [W]=WARN [ 14.588593] Hardware name: Broadcom STB (Flattened Device receipt

Read the rest of the CNA's description

Tree) [ 14.588598] Call trace: [ 14.588604] dump_backtrace from show_stack+0x18/0x1c [ 14.588622] r7:00000009 r6:0000008b r5:60000153 r4:c0fa558c [ 14.588625] show_stack from dump_stack_lvl+0x70/0x7c [ 14.588639] dump_stack_lvl from dump_stack+0x18/0x1c [ 14.588653] r5:c08d40b0 r4:c1003cb0 [ 14.588656] dump_stack from __warn+0x84/0xe4 [ 14.588668] __warn from warn_slowpath_fmt+0x18c/0x194 [ 14.588678] r7:c08d40b0 r6:c1003cb0 r5:00000000 r4:00000000 [ 14.588681] warn_slowpath_fmt from nand_reset_op+0x1e0/0x1f8 [ 14.588695] r8:70c40dff r7:89705f41 r6:36b4a597 r5:c26c9444 r4:c26b0048 [ 14.588697] nand_reset_op from brcmnand_resume+0x13c/0x150 [ 14.588714] r9:00000000 r8:00000000 r7:c24f8010 r6:c228a3f8 r5:c26c94bc r4:c26b0040 [ 14.588717] brcmnand_resume from platform_pm_resume+0x34/0x54 [ 14.588735] r5:00000010 r4:c0840a50 [ 14.588738] platform_pm_resume from dpm_run_callback+0x5c/0x14c [ 14.588757] dpm_run_callback from device_resume+0xc0/0x324 [ 14.588776] r9:c24f8054 r8:c24f80a0 r7:00000000 r6:00000000 r5:00000010 r4:c24f8010 [ 14.588779] device_resume from dpm_resume+0x130/0x160 [ 14.588799] r9:c22539e4 r8:00000010 r7:c22bebb0 r6:c24f8010 r5:c22539dc r4:c22539b0 [ 14.588802] dpm_resume from dpm_resume_end+0x14/0x20 [ 14.588822] r10:c2204e40 r9:00000000 r8:c228a3fc r7:00000000 r6:00000003 r5:c228a414 [ 14.588826] r4:00000010 [ 14.588828] dpm_resume_end from suspend_devices_and_enter+0x274/0x6f8 [ 14.588848] r5:c228a414 r4:00000000 [ 14.588851] suspend_devices_and_enter from pm_suspend+0x228/0x2bc [ 14.588868] r10:c3502910 r9:c3501f40 r8:00000004 r7:c228a438 r6:c0f95e18 r5:00000000 [ 14.588871] r4:00000003 [ 14.588874] pm_suspend from state_store+0x74/0xd0 [ 14.588889] r7:c228a438 r6:c0f934c8 r5:00000003 r4:00000003 [ 14.588892] state_store from kobj_attr_store+0x1c/0x28 [ 14.588913] r9:00000000 r8:00000000 r7:f09f9f08 r6:00000004 r5:c3502900 r4:c0283250 [ 14.588916] kobj_attr_store from sysfs_kf_write+0x40/0x4c [ 14.588936] r5:c3502900 r4:c0d92a48 [ 14.588939] sysfs_kf_write from kernfs_fop_write_iter+0x104/0x1f0 [ 14.588956] r5:c3502900 r4:c3501f40 [ 14.588960] kernfs_fop_write_iter from vfs_write+0x250/0x420 [ 14.588980] r10:c0e14b48 r9:00000000 r8:c25f5780 r7:00443398 r6:f09f9f68 r5:c34f7f00 [ 14.588983] r4:c042a88c [ 14.588987] vfs_write from ksys_write+0x74/0xe4 [ 14.589005] r10:00000004 r9:c25f5780 r8:c02002fA0 r7:00000000 r6:00000000 r5:c34f7f00 [ 14.589008] r4:c34f7f00 [ 14.589011] ksys_write from sys_write+0x10/0x14 [ 14.589029] r7:00000004 r6:004421c0 r5:00443398 r4:00000004 [ 14.589032] sys_write from ret_fast_syscall+0x0/0x5c [ 14.589044] Exception stack(0xf09f9fa8 to 0xf09f9ff0) [ 14.589050] 9fa0: 00000004 00443398 00000004 00443398 00000004 00000001 [ 14.589056] 9fc0: 00000004 00443398 004421c0 00000004 b6ecbd58 00000008 bebfbc38 0043eb78 [ 14.589062] 9fe0: 00440eb0 bebfbaf8 b6de18a0 b6e579e8 [ 14.589065] ---[ end trace 0000000000000000 ]--- The fix uses the higher level nand_reset(chip, chipnr); where chipnr = 0, when doing PM resume operation in compliance with the controller support for single die nand chip. Switching from nand_reset_op() to nan ---truncated---

NVD's analysis a second authority

severity
7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
affected versions
linux kernel >= 4.16 < 5.4.293; linux kernel >= 5.5 < 5.10.237; linux kernel >= 5.11 < 5.15.181; and 6 more, listed in full below

check it yourself git.kernel.org git.kernel.org git.kernel.org git.kernel.org git.kernel.org git.kernel.org +3 morereceipt

Movement the material steps

9 May 20250.00033
15 Jun 20260.00265 · scoring model v2026.06.15
5 Oct 20260.00331

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 28 observations
9 May 20250.00033
15 May 20250.00043
10 Jun 20250.00047
16 Jul 20250.00049
8 Sep 20250.00064
6 Oct 20250.00061
8 Oct 20250.0004
17 Oct 20250.00061
15 Nov 20250.00014
18 Nov 20250.0003
21 Nov 20250.00014
3 Dec 20250.00016
10 Dec 20250.00018
27 Dec 20250.00016
28 Dec 20250.00018
23 Jan 20260.00022
2 Feb 20260.00024
21 Feb 20260.00025
23 Feb 20260.00024
5 Mar 20260.00065
15 Jun 20260.00265
9 Jul 20260.00276
26 Jul 20260.00273
30 Jul 20260.0029
10 Aug 20260.00312
14 Sep 20260.00319
2 Oct 20260.00317
5 Oct 20260.00331

28 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00331Published2025-05-09Index as of2026-10-05

Exploit probability more than doubled between 2025-11-15 and 2025-11-18 (0.00014 → 0.0003) and the record had been public for 1 year, 4 months when this index was last written.

Published 2025-05-09 receipt · Index as of 2026-10-05 derived

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