CVE-2025-68182

Unspecified impact via freed iwlwifi link dereference

Published Dec 16, 2025 · Updated Dec 16, 2025

Use-after-free in Linux kernel 6.15 through 6.17.7 allows physically proximate attackers to cause unspecified impact via Wi-Fi. The iwl_mld_remove_link() function schedules link for RCU reclamation with kfree_rcu() and then reads link->fw_id from the freed object. Exploitation requires adjacent access to a system using the iwlwifi driver and a high-complexity link-removal condition; the precise resulting behavior has not been published.

CVSS severity7.5
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Linux kernel 6.15 through 6.17.7 allows physically proximate attackers to cause unspecified impact via Wi-Fi. The iwl_mld_remove_link() function schedules link for RCU reclamation with kfree_rcu() and then reads link->fw_id from the freed object. Exploitation requires adjacent access to a system using the iwlwifi driver and a high-complexity link-removal condition; the precise resulting behavior has not been published.

The record

CVE
CVE-2025-68182
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.15
  2. Affected versionversion=d1e879ec600f9b3bdd253167533959facfefb17b <5b4a239c9f94e1606435f1842fc6fd426d607dbb
  3. Affected versionversion=d1e879ec600f9b3bdd253167533959facfefb17b <77e67d5daaf155f7d0f99f4e797c4842169ec19e

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.15; version=d1e879ec600f9b3bdd253167533959facfefb17b <5b4a239c9f94e1606435f1842fc6fd426d607dbb; version=d1e879ec600f9b3bdd253167533959facfefb17b <77e67d5daaf155f7d0f99f4e797c4842169ec19e

Published CVSS scores

7.5Linux Kernel CVE TeamCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.5UbuntuCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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