CVE-2026-72074

Kernel memory corruption via unvalidated CDC interface

Published Aug 15, 2026 · Updated Aug 15, 2026

Type confusion in the Linux ims-pcu driver since 3.10 allows physically proximate attackers to corrupt kernel memory via a malicious USB device. The CDC union parser trusts bMasterInterface0 and uses the referenced interface without confirming that it is the control interface being probed. Exploitation requires attaching a crafted USB device while the ims-pcu driver binds, causing another interface's private data to be overwritten.

CVSS severity5.2
Medium
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

Type confusion in the Linux ims-pcu driver since 3.10 allows physically proximate attackers to corrupt kernel memory via a malicious USB device. The CDC union parser trusts bMasterInterface0 and uses the referenced interface without confirming that it is the control interface being probed. Exploitation requires attaching a crafted USB device while the ims-pcu driver binds, causing another interface's private data to be overwritten.

The record

CVE
CVE-2026-72074
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=3.10
  2. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <08bf4b6ee28987570f4b3f1954427621fa291bf5
  3. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <0e8115a7ed9a99ff9495615a575a6c0f43566d10
  4. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <163c3e7a1de6b3d5c85edb3bdf4cf087382103b0
  5. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <ab87cd7789d00f441f60a016cbcff35abe76513c
  6. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <b5518c5632f3485849421b9c33b4db5ae6a54ed7
  7. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <ca459e237bc49567649c56bc72e4c602fb92fd67
  8. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <f4cf878dcc4f6f02e7a25294bfaed4361264995e
  9. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <fa7f65c5315a25b310daae69ab527efd420e37fa

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.10; version=628329d52474323938a03826941e166bc7c8eff4 <08bf4b6ee28987570f4b3f1954427621fa291bf5; version=628329d52474323938a03826941e166bc7c8eff4 <0e8115a7ed9a99ff9495615a575a6c0f43566d10; version=628329d52474323938a03826941e166bc7c8eff4 <163c3e7a1de6b3d5c85edb3bdf4cf087382103b0; version=628329d52474323938a03826941e166bc7c8eff4 <ab87cd7789d00f441f60a016cbcff35abe76513c; version=628329d52474323938a03826941e166bc7c8eff4 <b5518c5632f3485849421b9c33b4db5ae6a54ed7; version=628329d52474323938a03826941e166bc7c8eff4 <ca459e237bc49567649c56bc72e4c602fb92fd67; version=628329d52474323938a03826941e166bc7c8eff4 <f4cf878dcc4f6f02e7a25294bfaed4361264995e; version=628329d52474323938a03826941e166bc7c8eff4 <fa7f65c5315a25b310daae69ab527efd420e37fa

Published CVSS scores

5.2Amazon LinuxCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
5.2SUSECVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1200Hardware Additions

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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