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NVD / CVE Program· CNA Linux

CVE-2024-40963: mips: bmips: BCM6358: make sure CBR is correctly set

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.28% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 10afe5f7d30f6fe50c2b1177549d0e04921fc373, 2cd4854ef14a487bcfb76c7980675980cad27b52, 36d771ce6028b886e18a4a8956a5d23688e4e13d.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 10afe5f7d30f6fe50c2b1177549d0e04921fc373, 2cd4854ef14a487bcfb76c7980675980cad27b52, 36d771ce6028b886e18a4a8956a5d23688e4e13d or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: mips: bmips: BCM6358: make sure CBR is correctly set It was discovered that some device have CBR address set to 0 causing kernel panic when arch_sync_dma_for_cpu_all is called. This was notice in situation where the system is booted from TP1 and BMIPS_GET_CBR() returns 0 instead of a valid address and !!(read_c0_brcm_cmt_local() & (1 << 31)); not failing. The current check whether RAC flush should be disabled or not are not enough hence lets check if CBR is a valid address or not.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jul 12, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 21th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.4.240 and later · before 5.4.279
  • linux linux kernel5.10.177 and later · before 5.10.221
  • linux linux kernel5.15.106 and later · before 5.15.162
  • linux linux kernel6.1.23 and later · before 6.1.96
  • linux linux kernel6.2.10 and later · before 6.3
  • linux linux kernel6.3.1 and later · before 6.6.36
  • linux linux kernel6.7 and later · before 6.9.7
  • linux linux kernel6.10
  • linux linux kernel6.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 288c96aa5b5526cd4a946e84ef85e165857693b5, 6.3affected
    • d65de5ee8b72868fbbbd39ca73017d0e526fa13a and later · before 10afe5f7d30f6fe50c2b1177549d0e04921fc373affected · git
    • 47a449ec09b4479b89dcc6b27ec3829fc82ffafb and later · before 36d771ce6028b886e18a4a8956a5d23688e4e13daffected · git
    • 65b723644294f1d79770704162c0e8d1f700b6f1 and later · before 89167072fd249e5f23ae2f8093f87da5925cef27affected · git
    • 2cdbcff99f15db86a10672fb220379a1ae46ccae and later · before 6c0f6ccd939166f56a904c792d7fcadae43b9085affected · git
    • ab327f8acdf8d06601fbf058859a539a9422afff and later · before 2cd4854ef14a487bcfb76c7980675980cad27b52affected · git
    • ab327f8acdf8d06601fbf058859a539a9422afff and later · before da895fd6da438af8d9326b8f02d715a9c76c3b5baffected · git
    • ab327f8acdf8d06601fbf058859a539a9422afff and later · before ce5cdd3b05216b704a704f466fb4c2dff3778cafaffected · git
    • 5.4.240 and later · before 5.4.279affected · semver
    • 5.10.177 and later · before 5.10.221affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.99-16.1.99-1
Debian:13linuxbefore 6.9.7-16.9.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-40957Jul 12, 2024 · seg6: fix parameter passing when calling NF_HOOK() in End.DX4 and End.DX6 behaviors
    22Monitor
  • ← EarlierCVE-2024-40962Jul 12, 2024 · btrfs: zoned: allocate dummy checksums for zoned NODATASUM writes
    22Monitor
  • Later →CVE-2024-40964Jul 12, 2024 · ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux10afe5f7d30f6fe50c2b1177549d0e04921fc373Vendor (CNA)
Linux Linux2cd4854ef14a487bcfb76c7980675980cad27b52Vendor (CNA)
Linux Linux36d771ce6028b886e18a4a8956a5d23688e4e13dVendor (CNA)
Linux Linux5.10.221Vendor (CNA)
Linux Linux5.15.162Vendor (CNA)
Linux Linux5.4.279Vendor (CNA)
Linux Linux6.1.96Vendor (CNA)
Linux Linux6.3Vendor (CNA)
Linux Linux6c0f6ccd939166f56a904c792d7fcadae43b9085Vendor (CNA)
Linux Linux89167072fd249e5f23ae2f8093f87da5925cef27Vendor (CNA)
Linux Linuxce5cdd3b05216b704a704f466fb4c2dff3778cafVendor (CNA)
Linux Linuxda895fd6da438af8d9326b8f02d715a9c76c3b5bVendor (CNA)
debian:linux6.1.99-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-39682420 days aparttls: fix handling of zero-length records on the rx_listKEV
    70This week
  • CVE-2024-4215918 days apartscsi: mpi3mr: Sanitise num_phys
    31Monitor
  • CVE-2024-4216018 days apartf2fs: check validation of fault attrs in f2fs_build_fault_attr()
    31Monitor
  • CVE-2024-4228436 days aparttipc: Return non-zero value from tipc_udp_addr2str() on error
    31Monitor
  • CVE-2024-47727101 days apartx86/tdx: Fix "in-kernel MMIO" check
    31Monitor
  • CVE-2021-47014135 days apartnet/sched: act_ct: fix wild memory access when clearing fragments
    31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-754 · Improper Check for Unusual or Exceptional Conditions

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records