Linux Kernel 6.0.8 Sector Size fs/ntfs3/run.c run_unpack 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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5.5$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel 6.0.8. Impacted is the function run_unpack of the file fs/ntfs3/run.c of the component Sector Size Handler. Performing a manipulation results in use after free. This vulnerability is reported as CVE-2023-26544. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel 6.0.8 (Operating System). This affects the function run_unpack of the file fs/ntfs3/run.c of the component Sector Size Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. The impact remains unknown. The summary by CVE is:

In the Linux kernel 6.0.8, there is a use-after-free in run_unpack in fs/ntfs3/run.c, related to a difference between NTFS sector size and media sector size.

The weakness was disclosed 02/25/2023. It is possible to read the advisory at lkml.org. This vulnerability is uniquely identified as CVE-2023-26544. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/09/2025).

The vulnerability scanner Nessus provides a plugin with the ID 247112 (Linux Distros Unpatched Vulnerability : CVE-2023-26544), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (247112). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

AVACAuCIA
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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: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 247112
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-26544

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/25/2023 🔍
02/25/2023 +0 days 🔍
02/25/2023 +0 days 🔍
08/09/2025 +896 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lkml.org
Status: Not defined

CVE: CVE-2023-26544 (🔍)
GCVE (CVE): GCVE-0-2023-26544
GCVE (VulDB): GCVE-100-221787

Entryinfo

Created: 02/25/2023 16:37
Updated: 08/09/2025 19:44
Changes: 02/25/2023 16:37 (39), 03/25/2023 08:59 (1), 08/09/2025 19:44 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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