Microsoft Windows up to Server 2025 RRAS untrusted pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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8.1$25k-$100k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Microsoft Windows. The affected element is an unknown function of the component RRAS. This manipulation causes untrusted pointer dereference. This vulnerability is tracked as CVE-2025-62549. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply a patch 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 untrusted pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-822. The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Untrusted pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

The weakness was disclosed 12/09/2025 as confirmed security update guide (Website). It is possible to read the advisory at msrc.microsoft.com. This vulnerability is known as CVE-2025-62549. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 12/10/2025).

The vulnerability scanner Nessus provides a plugin with the ID 278000 (KB5071507: Windows Server 2008 Security Update (December 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 vulnerability database at Tenable (278000). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.1

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

Vendor Base Score (Microsoft): 8.8
Vendor Vector (Microsoft): 🔒

CNA Base Score: 8.8
CNA Vector (Microsoft): 🔒

CVSSv2info

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

Exploitinginfo

Class: Untrusted pointer dereference
CWE: CWE-822
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: 278000
Nessus Name: KB5071507: Windows Server 2008 Security Update (December 2025)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

12/09/2025 VulDB entry created
12/09/2025 +0 days Advisory disclosed
12/09/2025 +0 days Countermeasure disclosed
12/10/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2025-62549 (🔒)
GCVE (CVE): GCVE-0-2025-62549
GCVE (VulDB): GCVE-100-335407
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 12/09/2025 19:09
Updated: 12/10/2025 06:43
Changes: 12/09/2025 19:09 (36), 12/09/2025 19:12 (33), 12/10/2025 06:07 (11), 12/10/2025 06:43 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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