Microsoft Windows up to Server 2025 Kernel Streaming Service Driver heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$5k-$25k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the component Kernel Streaming Service Driver. Performing a manipulation results in heap-based overflow. This vulnerability is cataloged as CVE-2025-24063. The attack must be initiated from a local position. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows. This affects an unknown code block of the component Kernel Streaming Service Driver. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

The weakness was shared 05/13/2025 as confirmed security update guide (Website). The advisory is shared at msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2025-24063. The exploitability is told to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/16/2026).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-14406) and CERT Bund (WID-SEC-2025-1050). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Hitachi Storage
  • Microsoft Windows Server 2019
  • Microsoft Windows Server
  • Microsoft Windows
  • Microsoft Windows 11
  • Microsoft Windows Server 2022
  • Microsoft Windows 10
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.8
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔍

CNA Base Score: 7.8
CNA Vector (Microsoft): 🔍

CVSSv2info

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

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

05/13/2025 🔍
05/13/2025 +0 days 🔍
05/13/2025 +0 days 🔍
03/16/2026 +307 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2025-24063 (🔍)
GCVE (CVE): GCVE-0-2025-24063
GCVE (VulDB): GCVE-100-308649
EUVD: 🔍
CERT Bund: WID-SEC-2025-1050 - Microsoft Windows Server: Mehrere Schwachstellen ermöglichen Privilegieneskalation

scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 05/13/2025 19:10
Updated: 03/16/2026 19:37
Changes: 05/13/2025 19:10 (35), 05/13/2025 19:13 (34), 05/14/2025 02:51 (1), 05/19/2025 21:12 (12), 03/16/2026 19:37 (7)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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