LiveActive security incident?Get immediate response
CVE Record

CVE-2025-21952: HID: corsair-void: Update power supply values with a unified work handler

In the Linux kernel, the following vulnerability has been resolved: HID: corsair-void: Update power supply values with a unified work handler corsair_void_process_receiver can be called from an interrupt context, locking battery_mutex in it was causing a kernel panic. Fix it by moving the critical section into its own work, sharing this work with battery_add_work and battery_remove_work to remove the need for any locking

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue can crash a machine when Corsair Void headset receiver handling updates battery or power information incorrectly. It is an availability risk, not a confirmed data theft path. Business urgency depends on whether affected Linux kernels and the corsair-void HID driver/device path are present.

Executive priority

Treat as a targeted stability issue. Patch through normal kernel maintenance, faster where Linux desktops, kiosks, or operational endpoints use the affected Corsair receiver path. There is no source evidence of active exploitation or broader remote compromise.

Technical view

The CVE describes a kernel panic caused when corsair_void_process_receiver, which can execute in interrupt context, locks battery_mutex. The upstream fix moves the critical section into a unified work handler shared with battery add and remove work, avoiding the unsafe locking pattern.

Likely exposure

Most exposure is likely on Linux systems running affected 6.13-era kernels with Corsair Void HID receiver support in use. Servers are less likely exposed unless this hardware or driver path is present. Source version data is sparse and should be verified against distribution advisories.

Exploitation context

The provided sources do not report active exploitation, public weaponization, or KEV listing. The documented impact is kernel panic, suggesting denial of service through a driver execution path. Required attacker position and trigger conditions are not fully described in the source bundle.

Researcher notes

The source bundle provides the root cause and fix direction but no CVSS, CWE, detailed affected range, or exploit prerequisites. Avoid assuming remote reachability. Validate downstream backports because Linux distributions may carry the fix under different package versions.

Mitigation direction

  • Check vendor or distribution advisories for patched kernel packages.
  • Upgrade to a kernel containing the referenced stable fixes.
  • Prioritize systems using Corsair Void receivers or the corsair-void HID driver.
  • If upgrade is delayed, assess whether the affected hardware or driver can be removed.

Validation and detection

  • Inventory Linux kernel versions against vendor advisories for CVE-2025-21952.
  • Check whether corsair-void HID support is present or loaded.
  • Review endpoint hardware inventories for Corsair Void receivers.
  • Confirm installed kernel includes the linked stable commits or downstream backport.
Prepared
Confidence
medium
Sources
4

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.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2025-21952 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
3Timeline events
0ADP providers
3Source links

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.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux6ea2a6fd3872e60a4d500b548ad65ed94e459ddd, 6ea2a6fd3872e60a4d500b548ad65ed94e459dddunaffected
LinuxLinux6.13, 0, 6.13.7, 6.14affected
Weakness

CWE details

No CWE listed

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