Linux Kernel up to 6.1.19/6.2.2 exc3000 use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.1.19/6.2.2 and classified as critical. This affects an unknown part of the component exc3000. This manipulation causes use after free. This vulnerability is registered as CVE-2023-53651. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.1.19/6.2.2 and classified as critical. Affected by this vulnerability is an unknown part of the component exc3000. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: Input: exc3000 - properly stop timer on shutdown We need to stop the timer on driver unbind or probe failures, otherwise we get UAF/Oops.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2023-53651 since 10/07/2025. The exploitation appears to be easy. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/01/2026).

Upgrading to version 6.1.20 or 6.2.3 eliminates this vulnerability. Applying the patch 526a177ac6353d65057eadb5d6edafc168f64484/bee57c20fc0ca5ef9b9a53a0335eab2ac9e9cae1/79c81d137d36f9635bbcbc3916c0cccb418a61dd 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 vulnerability database at CERT Bund (WID-SEC-2025-2229). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • IBM QRadar SIEM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.20/6.2.3
Patch: 526a177ac6353d65057eadb5d6edafc168f64484/bee57c20fc0ca5ef9b9a53a0335eab2ac9e9cae1/79c81d137d36f9635bbcbc3916c0cccb418a61dd

Timelineinfo

10/07/2025 Advisory disclosed
10/07/2025 +0 days CVE reserved
10/07/2025 +0 days VulDB entry created
03/01/2026 +145 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53651 (🔒)
GCVE (CVE): GCVE-0-2023-53651
GCVE (VulDB): GCVE-100-327505
CERT Bund: WID-SEC-2025-2229 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/07/2025 19:30
Updated: 03/01/2026 11:50
Changes: 10/07/2025 19:30 (58), 11/23/2025 02:25 (7), 12/25/2025 23:33 (1), 02/04/2026 01:33 (11), 03/01/2026 11:50 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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