CVE-2022-48626

Kernel invalid access via freed MMC host

Published Feb 25, 2024 · Updated May 11, 2026

Use-after-free in the Moxart MMC host driver allows local users to trigger an invalid kernel-memory access during device removal. moxart_remove() frees the MMC host and then derives a base-register access through the released host pointer instead of preserving the register first. Reachability requires the affected driver and its device-removal path; public sources identify no reliable trigger or demonstrated consequence beyond the invalid access.

CVSS severity7.8
High
EPSS probability0.31%
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 the Moxart MMC host driver allows local users to trigger an invalid kernel-memory access during device removal. moxart_remove() frees the MMC host and then derives a base-register access through the released host pointer instead of preserving the register first. Reachability requires the affected driver and its device-removal path; public sources identify no reliable trigger or demonstrated consequence beyond the invalid access.

The record

CVE
CVE-2022-48626
Published
Feb 25, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record 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=1b66e94e6b9995323190f31c51d8e1a6f516627e <3a0a7ec5574b510b067cfc734b8bdb6564b31d4e
  2. Affected versionversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <7f901d53f120d1921f84f7b9b118e87e94b403c5
  3. Affected versionversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <9c25d5ff1856b91bd4365e813f566cb59aaa9552
  4. Affected versionversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <af0e6c49438b1596e4be8a267d218a0c88a42323
  5. Affected versionversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <bd2db32e7c3e35bd4d9b8bbff689434a50893546
  6. Affected versionversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <be93028d306dac9f5b59ebebd9ec7abcfc69c156
  7. Affected versionversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <e6f580d0b3349646d4ee1ce0057eb273e8fb7e2e
  8. Affected versionversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <f5dc193167591e88797262ec78515a0cbe79ff5f
  9. Affected versionversion=3.16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1b66e94e6b9995323190f31c51d8e1a6f516627e <3a0a7ec5574b510b067cfc734b8bdb6564b31d4e; version=1b66e94e6b9995323190f31c51d8e1a6f516627e <7f901d53f120d1921f84f7b9b118e87e94b403c5; version=1b66e94e6b9995323190f31c51d8e1a6f516627e <9c25d5ff1856b91bd4365e813f566cb59aaa9552; version=1b66e94e6b9995323190f31c51d8e1a6f516627e <af0e6c49438b1596e4be8a267d218a0c88a42323; version=1b66e94e6b9995323190f31c51d8e1a6f516627e <bd2db32e7c3e35bd4d9b8bbff689434a50893546; version=1b66e94e6b9995323190f31c51d8e1a6f516627e <be93028d306dac9f5b59ebebd9ec7abcfc69c156; version=1b66e94e6b9995323190f31c51d8e1a6f516627e <e6f580d0b3349646d4ee1ce0057eb273e8fb7e2e; version=1b66e94e6b9995323190f31c51d8e1a6f516627e <f5dc193167591e88797262ec78515a0cbe79ff5f; version=3.16

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

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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