Microsoft Windows up to Server 2025 RRAS 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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7.6$5k-$25k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Microsoft Windows. This vulnerability affects unknown code of the component RRAS. This manipulation causes heap-based overflow. This vulnerability is registered as CVE-2025-62452. Remote exploitation of the attack is possible. No exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in Microsoft Windows and classified as critical. Affected by this vulnerability is some unknown functionality of the component RRAS. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is 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(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.

The weakness was published 11/11/2025 as confirmed security update guide (Website). The advisory is shared at msrc.microsoft.com. This vulnerability is known as CVE-2025-62452. The exploitation appears to be easy. The attack can be launched remotely. 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 01/05/2026).

The vulnerability scanner Nessus provides a plugin with the ID 274792 (KB5068779: Windows 11 version 22H2 / Windows Server version 23H2 Security Update (November 2025)), which helps to determine the existence of the flaw in a target environment.

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 Tenable (274792) and CERT Bund (WID-SEC-2025-2564). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Hitachi Storage
  • Microsoft Windows 11
  • Microsoft Windows Server
  • Microsoft Windows Server 2016
  • Microsoft Windows 10
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2022
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2025

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.8
VulDB Temp Score: 7.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 8.0
Vendor Vector (Microsoft): 🔒

CNA Base Score: 8.0
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: No
Local: No
Remote: Yes

Availability: 🔒
Status: Unproven

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 274792
Nessus Name: KB5068779: Windows 11 version 22H2 / Windows Server version 23H2 Security Update (November 2025)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Timelineinfo

11/11/2025 VulDB entry created
11/11/2025 +0 days Advisory disclosed
11/11/2025 +0 days Countermeasure disclosed
01/05/2026 +54 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2025-62452 (🔒)
GCVE (CVE): GCVE-0-2025-62452
GCVE (VulDB): GCVE-100-332005
CERT Bund: WID-SEC-2025-2564 - Microsoft Windows und Windows Server: Mehrere Schwachstellen

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

Entryinfo

Created: 11/11/2025 19:45
Updated: 01/05/2026 07:25
Changes: 11/11/2025 19:45 (10), 11/11/2025 19:46 (25), 11/11/2025 19:49 (34), 11/12/2025 01:59 (12), 11/12/2025 03:00 (2), 11/16/2025 08:19 (6), 01/05/2026 07:25 (1)
Complete: 🔍
Cache ID: 216:3D7:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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