CVE-2026-80782Hinoki check available

Freed-memory dereference via stale input pointer

Published Sep 4, 2026 · Updated Sep 4, 2026

Use-after-free in the Linux kernel magicmouse HID driver allows attackers to dereference freed memory through a subsequent input report. magicmouse_input_mapping() caches an input_dev in msc->input, but failed HID input registration frees that object without clearing the cached pointer while probe continues. Reachability requires input registration to fail while another device interface remains claimed; no privilege escalation or code execution is reported.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Use-after-free in the Linux kernel magicmouse HID driver allows attackers to dereference freed memory through a subsequent input report. magicmouse_input_mapping() caches an input_dev in msc->input, but failed HID input registration frees that object without clearing the cached pointer while probe continues. Reachability requires input registration to fail while another device interface remains claimed; no privilege escalation or code execution is reported.

The record

CVE
CVE-2026-80782
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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=0e55072e7c63a6569cab1447e9025d160abd9dd9
  2. Affected versionversion=3.8.7 <3.9
  3. Affected versionversion=3.9
  4. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <0af3b89705688af01aa06025b84fa7a1e06ba6cc
  5. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <0bf253e9ac994cb5329bc87b00bb4eeca9136791
  6. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <15b60ade825c8ce9ec560048a4ae3747e4572be3
  7. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <2ef16934e069d5f771e989d6ee5c3ece5042f3cd
  8. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <3d7a7bac4c75f25b2513505a0ac5ba909588ed2b
  9. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14
  10. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <9bdf8c7bfd79f1090e61d28f969b32880fd77bb3
  11. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <c3597923932bb90d4fc2186aef552f6677175e4a
  12. Affected versionversion=f1a9a149abc86903e81dd1b2e720f3f89874384b <e0c224c93d10ee38854fdf24c815108aedd3dcb3

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0e55072e7c63a6569cab1447e9025d160abd9dd9; version=3.8.7 <3.9; version=3.9; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <0af3b89705688af01aa06025b84fa7a1e06ba6cc; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <0bf253e9ac994cb5329bc87b00bb4eeca9136791; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <15b60ade825c8ce9ec560048a4ae3747e4572be3; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <2ef16934e069d5f771e989d6ee5c3ece5042f3cd; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <3d7a7bac4c75f25b2513505a0ac5ba909588ed2b; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <9bdf8c7bfd79f1090e61d28f969b32880fd77bb3; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <c3597923932bb90d4fc2186aef552f6677175e4a; version=f1a9a149abc86903e81dd1b2e720f3f89874384b <e0c224c93d10ee38854fdf24c815108aedd3dcb3

Published CVSS scores

No CVSS assessment is available in this record.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
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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