Windows
CVE-2026-25173
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate to RRAS service
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ExploitSend crafted network packet
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ExecutionTrigger integer overflow in packet handler
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ImpactExecute arbitrary code with RRAS privileges
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Heap buffer bounds checking
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Attacker must possess valid credentials for Windows RRAS. User interaction required to process malicious network traffic. Affects Windows systems with RRAS enabled and configured for remote access. |
| Impact | CVSS 8.0 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: Required. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Remote code execution in Windows RRAS affects Windows 10 1607 and Windows Server 2022 23h2 through an integer overflow vulnerability exploitable by authenticated network attackers. Public exploit code exists for this vulnerability, enabling authenticated users to execute arbitrary code with high integrity and confidentiality impact. No patch is currently available, making this a critical exposure for affected Windows environments.
Earlier versions of this analysis (1)
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network. [CVSS 8.0 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 15 packages in microsoft
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-122 (Heap-based Buffer Overflow). Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
Executive ViewAI
CVE-2026-25173 is a high-severity vulnerability in Windows RRAS that allows authorized network users to execute arbitrary code on affected systems. Organizations running RRAS infrastructure face immediate risk of lateral movement and system compromise, with no patch currently available to remediate the threat.
Implement network segmentation to limit RRAS access to trusted administrative subnets; disable RRAS on systems where it is not operationally required; enforce multi-factor authentication for all RRAS access; deploy enhanced monitoring for anomalous RRAS process behavior and network connections; consider deploying a VPN appliance alternative to reduce reliance on RRAS until patching is available.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
A heap overflow occurs when a program writes data beyond the bounds of a buffer allocated in the heap memory region.
Affected Products (CPE)CVE.org
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