CVE-2023-53797

Input-service hang via truncated HID timestamps

Published Dec 9, 2025 · Updated Aug 5, 2026

Integer overflow in the Linux Wacom HID driver allows physically proximate attackers to hang userspace input through Bluetooth pen reports. The driver stores ktime_get() nanoseconds in int-sized time_delayed fields, truncating the values and producing incorrect event timestamps. An affected Bluetooth Wacom tablet must be attached, and ordinary pen processing can corrupt event timing until userspace input appears hung.

CVSS severity7.1
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the Linux Wacom HID driver allows physically proximate attackers to hang userspace input through Bluetooth pen reports. The driver stores ktime_get() nanoseconds in int-sized time_delayed fields, truncating the values and producing incorrect event timestamps. An affected Bluetooth Wacom tablet must be attached, and ordinary pen processing can corrupt event timing until userspace input appears hung.

The record

CVE
CVE-2023-53797
Published
Dec 9, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 9, 2025CVE 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

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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=17d793f3ed53080dab6bbeabfc82de890c901001 <9a6c0e28e215535b2938c61ded54603b4e5814c5
  2. Affected versionversion=17d793f3ed53080dab6bbeabfc82de890c901001 <d0198363f9108e4adb2511e607ba91e44779e8b1
  3. Affected versionversion=4502ebbdc0e21e44a8a706428e420ae9c1bb9bba <9598a647ecc8f300b0540abf9d3b3439859d163b
  4. Affected versionversion=5047a228d4c8e2b5d1b856f21a00ecf717945a9c <67ce7724637c6adb66f788677cb50b82615de0ac
  5. Affected versionversion=5.10.180 <5.10.188
  6. Affected versionversion=5.15.112 <5.15.120
  7. Affected versionversion=5.4.243 <5.4.251
  8. Affected versionversion=6.1.29 <6.1.37
  9. Affected versionversion=6.2.16 <6.3
  10. Affected versionversion=6.3.3 <6.3.11
  11. Affected versionversion=6.4
  12. Affected versionversion=694d3e4387bfa69925e075053894385351106e64 <bdeaa883b765709f231f47f9d6cc76c837a15396
  13. Affected versionversion=82a136c35506dc788a6c03ffeb11b10c907b0e26
  14. Affected versionversion=f9e27d4bdb1fe257c1453d02560e3adc3e5b6023 <99036f1aed7e82773904f5d91a9897bb3e507fd9
  15. Affected versionversion=fb98336e23c11e9c8c7dd5425ec71adbbef7f773 <d89750b19681581796dfbe3689bbb5d439b99b24

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=17d793f3ed53080dab6bbeabfc82de890c901001 <9a6c0e28e215535b2938c61ded54603b4e5814c5; version=17d793f3ed53080dab6bbeabfc82de890c901001 <d0198363f9108e4adb2511e607ba91e44779e8b1; version=4502ebbdc0e21e44a8a706428e420ae9c1bb9bba <9598a647ecc8f300b0540abf9d3b3439859d163b; version=5047a228d4c8e2b5d1b856f21a00ecf717945a9c <67ce7724637c6adb66f788677cb50b82615de0ac; version=5.10.180 <5.10.188; version=5.15.112 <5.15.120; version=5.4.243 <5.4.251; version=6.1.29 <6.1.37; version=6.2.16 <6.3; version=6.3.3 <6.3.11; version=6.4; version=694d3e4387bfa69925e075053894385351106e64 <bdeaa883b765709f231f47f9d6cc76c837a15396; version=82a136c35506dc788a6c03ffeb11b10c907b0e26; version=f9e27d4bdb1fe257c1453d02560e3adc3e5b6023 <99036f1aed7e82773904f5d91a9897bb3e507fd9; version=fb98336e23c11e9c8c7dd5425ec71adbbef7f773 <d89750b19681581796dfbe3689bbb5d439b99b24

Published CVSS scores

7.1LinuxCVSS:3.1/AV:A/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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