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CVE Record

CVE-2025-22007: Bluetooth: Fix error code in chan_alloc_skb_cb()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix error code in chan_alloc_skb_cb() The chan_alloc_skb_cb() function is supposed to return error pointers on error. Returning NULL will lead to a NULL dereference.

MediumCVSS 5.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-22007 is a Linux kernel Bluetooth flaw that can crash affected systems. It requires local access with low privileges, so it is not a remote internet-facing bug. The main business risk is service disruption on Linux endpoints or servers running affected kernels.

Executive priority

Handle through normal kernel patch cycles, faster for shared systems, developer workstations, and hosts with untrusted local users. This is not currently an emergency internet-exposed threat based on provided sources.

Technical view

The Linux Bluetooth function chan_alloc_skb_cb() returned NULL where an error pointer was expected. That can trigger a NULL pointer dereference, classified as CWE-476. CVSS 3.1 is 5.5: local attack vector, low complexity, low privileges, no user interaction, and high availability impact.

Likely exposure

Exposure is limited to Linux systems running affected kernel versions with the vulnerable Bluetooth code. The source bundle lists Linux kernel versions including 5.4.292, 5.10.236, 5.15.180, 6.1.132, 6.6.85, 6.12.21, 6.13.9, and 6.14 as affected.

Exploitation context

Sources do not show active exploitation, and the CVE is not marked KEV. The CVSS vector indicates exploitation requires local access and low privileges. Impact is availability only; no confidentiality or integrity impact is listed.

Researcher notes

The fix changes error handling in chan_alloc_skb_cb() to return error pointers rather than NULL. Public sources identify stable kernel commits and Debian LTS advisories, but do not provide exploit details or evidence of exploitation.

Mitigation direction

  • Apply Linux kernel updates from your distribution or vendor guidance.
  • Review Debian LTS advisories if running affected Debian kernel packages.
  • Prioritize systems where local users or untrusted workloads exist.
  • Reboot after kernel updates so the fixed kernel is active.

Validation and detection

  • Inventory Linux kernel versions across endpoints and servers.
  • Compare installed kernels against vendor advisories and fixed stable commits.
  • Confirm the running kernel changed after reboot.
  • Track remediation through package manager or configuration management evidence.
Prepared
Confidence
high
Sources
7

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.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-476: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-22007 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2025-22007Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
cvssV3_1other:ssvc
CVECVE Program Container
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux6b8d4a6a03144c5996f98db7f8256267b0d72a3a, 6b8d4a6a03144c5996f98db7f8256267b0d72a3a, 6b8d4a6a03144c5996f98db7f8256267b0d72a3a, 6b8d4a6a03144c5996f98db7f8256267b0d72a3a, 6b8d4a6a03144c5996f98db7f8256267b0d72a3a, 6b8d4a6a03144c5996f98db7f8256267b0d72a3a, 6b8d4a6a03144c5996f98db7f8256267b0d72a3a, 6b8d4a6a03144c5996f98db7f8256267b0d72a3aunaffected
LinuxLinux3.17, 0, 5.4.292, 5.10.236, 5.15.180, 6.1.132, 6.6.85, 6.12.21, 6.13.9, 6.14affected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-476 · source CWE mapping

NULL Pointer Dereference

NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.