CVE-2022-48790Network attack vector

Kernel memory corruption via reset-time AER submission

Published Jul 16, 2024 · Updated Aug 5, 2026

Use-after-free in Linux kernel NVMe host code allows remote attackers to corrupt kernel memory through crafted NVMe/TCP traffic. During controller teardown, asynchronous-event handling can submit another request through an admin-queue socket that has already been released. Exploitation requires an established NVMe/TCP connection to a malicious or compromised target or an on-path position and can crash the kernel or execute code in kernel context.

CVSS severity7.0
High
EPSS probability0.79%
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 NVMe host code allows remote attackers to corrupt kernel memory through crafted NVMe/TCP traffic. During controller teardown, asynchronous-event handling can submit another request through an admin-queue socket that has already been released. Exploitation requires an established NVMe/TCP connection to a malicious or compromised target or an on-path position and can crash the kernel or execute code in kernel context.

The record

CVE
CVE-2022-48790
Published
Jul 16, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.15
  2. Affected versionversion=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <0ead57ceb21bbf15963b4874c2ac67143455382f
  3. Affected versionversion=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d
  4. Affected versionversion=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <70356b756a58704e5c8818cb09da5854af87e765
  5. Affected versionversion=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <9e956a2596ae276124ef0d96829c013dd0faf861
  6. Affected versionversion=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <a25e460fbb0340488d119fb2e28fe3f829b7417e
  7. Affected versionversion=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <e043fb5a0336ee74614e26f0d9f36f1f5bb6d606

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <0ead57ceb21bbf15963b4874c2ac67143455382f; version=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d; version=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <70356b756a58704e5c8818cb09da5854af87e765; version=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <9e956a2596ae276124ef0d96829c013dd0faf861; version=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <a25e460fbb0340488d119fb2e28fe3f829b7417e; version=ad22c355b707a8d8d48e282aadc01c0b0604b2e9 <e043fb5a0336ee74614e26f0d9f36f1f5bb6d606

Published CVSS scores

7.0NIST NVDCVSS:3.1/AV:L/AC:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

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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