Linux Kernel up to 6.4.0 HID ktime_t privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.4.0. The impacted element is the function ktime_t of the component HID. Executing a manipulation can lead to an unknown weakness. This vulnerability is handled as CVE-2023-53797. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.4.0 and classified as critical. This vulnerability affects the function ktime_t of the component HID. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: HID: wacom: Use ktime_t rather than int when dealing with timestamps Code which interacts with timestamps needs to use the ktime_t type returned by functions like ktime_get. The int type does not offer enough space to store these values, and attempting to use it is a recipe for problems. In this particular case, overflows would occur when calculating/storing timestamps leading to incorrect values being reported to userspace. In some cases these bad timestamps cause input handling in userspace to appear hung.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2023-53797 since 12/09/2025. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/29/2026).

The vulnerability scanner Nessus provides a plugin with the ID 278357 (Linux Distros Unpatched Vulnerability : CVE-2023-53797), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.251, 5.10.188, 5.15.120, 6.1.37, 6.3.11 or 6.4.1 eliminates this vulnerability. Applying the patch 99036f1aed7e82773904f5d91a9897bb3e507fd9/9598a647ecc8f300b0540abf9d3b3439859d163b/67ce7724637c6adb66f788677cb50b82615de0ac/d89750b19681581796dfbe3689bbb5d439b99b24/bdeaa883b765709f231f47f9d6cc76c837a15396/d0198363f9108e4adb2511e607ba91e44779e8b1/9a6c0e28e215535b2938c61ded54603b4e5814c5 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (278357) and CERT Bund (WID-SEC-2025-2765). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 278357
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-53797

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.251/5.10.188/5.15.120/6.1.37/6.3.11/6.4.1
Patch: 99036f1aed7e82773904f5d91a9897bb3e507fd9/9598a647ecc8f300b0540abf9d3b3439859d163b/67ce7724637c6adb66f788677cb50b82615de0ac/d89750b19681581796dfbe3689bbb5d439b99b24/bdeaa883b765709f231f47f9d6cc76c837a15396/d0198363f9108e4adb2511e607ba91e44779e8b1/9a6c0e28e215535b2938c61ded54603b4e5814c5

Timelineinfo

12/09/2025 Advisory disclosed
12/09/2025 +0 days CVE reserved
12/09/2025 +0 days VulDB entry created
03/29/2026 +110 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53797 (🔒)
GCVE (CVE): GCVE-0-2023-53797
GCVE (VulDB): GCVE-100-335056
CERT Bund: WID-SEC-2025-2765 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/09/2025 11:18
Updated: 03/29/2026 11:55
Changes: 12/09/2025 11:18 (58), 12/12/2025 04:18 (2), 03/29/2026 11:55 (7)
Complete: 🔍
Cache ID: 216:3A0:103

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