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CVE Record

CVE-2024-27410: wifi: nl80211: reject iftype change with mesh ID change

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject iftype change with mesh ID change It's currently possible to change the mesh ID when the interface isn't yet in mesh mode, at the same time as changing it into mesh mode. This leads to an overwrite of data in the wdev->u union for the interface type it currently has, causing cfg80211_change_iface() to do wrong things when switching. We could probably allow setting an interface to mesh while setting the mesh ID at the same time by doing a different order of operations here, but realistically there's no userspace that's going to do this, so just disallow changes in iftype when setting mesh ID.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A low-privileged local user on an affected Linux system may trigger unsafe kernel Wi-Fi interface handling by combining mesh configuration and interface-type changes. The supplied CVSS 3.1 score is 7.8 because successful abuse could seriously affect confidentiality, integrity, and availability. The evidence does not indicate remote exploitation.

Executive priority

Prioritize accelerated patching for multi-user, appliance, kiosk, or edge Linux deployments combining wireless support with untrusted local users. The evidence does not support an emergency internet-facing response because access is local and active exploitation is not reported.

Technical view

nl80211 permitted one request to set a mesh ID while changing an interface into mesh mode. The mesh ID could overwrite data in the wdev->u union for the current interface type, causing cfg80211_change_iface() to operate incorrectly. The Linux stable fix rejects combined mesh-ID and interface-type changes.

Likely exposure

Exposure is most plausible on systems running an affected kernel with wireless nl80211 functionality, where a low-privileged local user can request relevant interface changes. The bundle lists several versions but does not provide clear range semantics. Confirm exact exposure through distribution advisories and backport records.

Exploitation context

The bundle reports KEV as false and provides no evidence of exploitation in the wild or a public exploit. The CVSS vector indicates local access, low complexity, low privileges, and no user interaction. Exploitability should therefore be treated as local and configuration-dependent.

Researcher notes

The key condition is one nl80211 operation combining a mesh ID update with an interface-type transition. The vulnerable ordering overwrites the active wdev->u union data before cfg80211_change_iface() completes. Stable fixes reject that combination. The bundle supplies no CWE, crash signature, proof of concept, or confirmed exploit outcome beyond the CVSS impact ratings.

Mitigation direction

  • Upgrade to a supported distribution kernel incorporating the applicable Linux stable fix.
  • Confirm the selected kernel package against your distribution's CVE advisory and changelog.
  • Reduce untrusted local access until affected systems are updated.
  • Disable unnecessary wireless mesh functionality where operationally safe and supported.

Validation and detection

  • Inventory installed and running kernel versions on systems with wireless functionality.
  • Check distribution advisories for affected version ranges and backported fixes.
  • Verify the kernel contains an applicable cited stable fix or vendor equivalent.
  • Confirm each system booted into the updated kernel after installation.
  • Review local-user access and wireless mesh usage to refine prioritization.
Prepared
Confidence
medium
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2024-27410 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
2ADP providers
11Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-27410Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux7b0a0e3c3a88260b6fcb017e49f198463aa62ed1, 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1, 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1, 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1, 7a53ad13c09150076b7ddde96c2dfc5622c90b45, 5.19.2unaffected
LinuxLinux6.0, 0, 6.1.81, 6.6.21, 6.7.9, 6.8affected
Weakness

CWE details

No CWE listed

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