CVE-2025-55700· NVD / CVE Program· CNA microsoft

Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability

Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

MediumCVSS 4.3 · v3.1—No exploit Fix available

BDU:2025-13216

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Published: Oct 14, 2025
Updated: Jun 17, 2026
EPSS: 1.0% · 61th percentile
CWE: CWE-125

Follow this CVE

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.0%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 4.3
CNA · microsoft: 6.5; 2.2 point gap

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

Vendor	Product	CPE
microsoft	windows 10 1507	cpe:2.3:o:microsoft:windows_10_1507
microsoft	windows 10 1607	cpe:2.3:o:microsoft:windows_10_1607
microsoft	windows 10 1809	cpe:2.3:o:microsoft:windows_10_1809
microsoft	windows 10 21h2	cpe:2.3:o:microsoft:windows_10_21h2
microsoft	windows 10 22h2	cpe:2.3:o:microsoft:windows_10_22h2
microsoft	windows 11 22h2	cpe:2.3:o:microsoft:windows_11_22h2
microsoft	windows 11 23h2	cpe:2.3:o:microsoft:windows_11_23h2
microsoft	windows 11 24h2	cpe:2.3:o:microsoft:windows_11_24h2
microsoft	windows 11 25h2	cpe:2.3:o:microsoft:windows_11_25h2
microsoft	windows server 2008	cpe:2.3:o:microsoft:windows_server_2008
microsoft	windows server 2012	cpe:2.3:o:microsoft:windows_server_2012
microsoft	windows server 2016	cpe:2.3:o:microsoft:windows_server_2016

and 4 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

microsoft windows server 2008all versions
microsoft windows server 2008r2
microsoft windows server 2012all versions
microsoft windows server 2012r2
microsoft windows server 2016up to 10.0.14393.8519 inclusive
microsoft windows server 2019before 10.0.17763.7919
microsoft windows server 2022before 10.0.20348.4294
microsoft windows server 2022 23h2before 10.0.25398.1913
microsoft windows server 2025up to 10.0.26100.6899 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

Microsoft Windows 10 Version 1507
- 10.0.10240.0 and later · before 10.0.10240.21161affected
Microsoft Windows 10 Version 1607
- 10.0.14393.0 and later · before 10.0.14393.8519affected
Microsoft Windows 10 Version 1809
- 10.0.17763.0 and later · before 10.0.17763.7919affected
Microsoft Windows 10 Version 21H2
- 10.0.19044.0 and later · before 10.0.19044.6456affected
Microsoft Windows 10 Version 22H2
- 10.0.19045.0 and later · before 10.0.19045.6456affected
Microsoft Windows 11 version 22H2
- 10.0.22621.0 and later · before 10.0.22621.6060affected
Microsoft Windows 11 version 22H3
- 10.0.22631.0 and later · before 10.0.22631.6060affected
Microsoft Windows 11 Version 23H2
- 10.0.22631.0 and later · before 10.0.22631.6060affected
Microsoft Windows 11 Version 24H2
- 10.0.26100.0 and later · before 10.0.26100.6899affected
Microsoft Windows 11 Version 25H2
- 10.0.26200.0 and later · before 10.0.26200.6899affected
Microsoft Windows Server 2008 R2 Service Pack 1
- 6.1.7601.0 and later · before 6.1.7601.27974affected
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- 6.1.7601.0 and later · before 6.1.7601.27974affected

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

CVE-2021-34527Windows Print Spooler Remote Code Execution VulnerabilityKEV
95Now
CVE-2021-40444Microsoft MSHTML Remote Code Execution VulnerabilityKEV
94Now
CVE-2025-33053Internet Shortcut Files Remote Code Execution VulnerabilityKEV
91Now
CVE-2023-36025Windows SmartScreen Security Feature Bypass VulnerabilityKEV
91Now
CVE-2022-30190Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution VulnerabilityKEV
91Now
CVE-2017-8543Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista, Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, WinKEV
91Now

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Windows 10 for 32-bit Systems	10.0.10240.21161 · KB5066837	Microsoft (MSRC)
Windows 10 for x64-based Systems	10.0.10240.21161 · KB5066837	Microsoft (MSRC)
Windows 10 Version 1607 for 32-bit Systems	10.0.14393.8519 · KB5066836	Microsoft (MSRC)
Windows 10 Version 1607 for x64-based Systems	10.0.14393.8519 · KB5066836	Microsoft (MSRC)
Windows 10 Version 1809 for 32-bit Systems	10.0.17763.7919 · KB5066586	Microsoft (MSRC)
Windows 10 Version 1809 for x64-based Systems	10.0.17763.7919 · KB5066586	Microsoft (MSRC)
Windows 10 Version 21H2 for 32-bit Systems	10.0.19044.6456 · KB5066791	Microsoft (MSRC)
Windows 10 Version 21H2 for ARM64-based Systems	10.0.19044.6456 · KB5066791	Microsoft (MSRC)
Windows 10 Version 21H2 for x64-based Systems	10.0.19044.6456 · KB5066791	Microsoft (MSRC)
Windows 10 Version 22H2 for 32-bit Systems	10.0.19045.6456 · KB5066791	Microsoft (MSRC)
Windows 10 Version 22H2 for ARM64-based Systems	10.0.19045.6456 · KB5066791	Microsoft (MSRC)
Windows 10 Version 22H2 for x64-based Systems	10.0.19045.6456 · KB5066791	Microsoft (MSRC)
Windows 11 Version 22H2 for ARM64-based Systems	10.0.22621.6060 · KB5066793	Microsoft (MSRC)
Windows 11 Version 22H2 for x64-based Systems	10.0.22621.6060 · KB5066793	Microsoft (MSRC)
Windows 11 Version 23H2 for ARM64-based Systems	10.0.22631.6060 · KB5066793	Microsoft (MSRC)
Windows 11 Version 23H2 for x64-based Systems	10.0.22631.6060 · KB5066793	Microsoft (MSRC)
Windows 11 Version 24H2 for ARM64-based Systems	10.0.26100.6899 · KB5066835	Microsoft (MSRC)
Windows 11 Version 24H2 for x64-based Systems	10.0.26100.6899 · KB5066835	Microsoft (MSRC)
Windows 11 Version 25H2 for ARM64-based Systems	10.0.26200.6899 · KB5066835	Microsoft (MSRC)
Windows 11 Version 25H2 for x64-based Systems	10.0.26200.6899 · KB5066835	Microsoft (MSRC)
Windows Server 2008 for 32-bit Systems Service Pack 2	6.0.6003.23571 · KB5066874	Microsoft (MSRC)
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)	6.0.6003.23571 · KB5066874	Microsoft (MSRC)
Windows Server 2008 for x64-based Systems Service Pack 2	6.0.6003.23571 · KB5066874	Microsoft (MSRC)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)	6.0.6003.23571 · KB5066874	Microsoft (MSRC)
Windows Server 2008 R2 for x64-based Systems Service Pack 1	6.1.7601.27974 · KB5066872	Microsoft (MSRC)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)	6.1.7601.27974 · KB5066872	Microsoft (MSRC)
Windows Server 2012	6.2.9200.25722 · KB5066875	Microsoft (MSRC)
Windows Server 2012 (Server Core installation)	6.2.9200.25722 · KB5066875	Microsoft (MSRC)
Windows Server 2012 R2	6.3.9600.22824 · KB5066873	Microsoft (MSRC)
Windows Server 2012 R2 (Server Core installation)	6.3.9600.22824 · KB5066873	Microsoft (MSRC)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2024-49113307 days apartWindows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
55Plan
CVE-2025-24991217 days apartWindows NTFS Information Disclosure VulnerabilityKEV
53Plan
CVE-2024-38240399 days apartWindows Remote Access Connection Manager Elevation of Privilege Vulnerability
39Monitor
CVE-2025-4968798 days apartWindows Input Method Editor (IME) Elevation of Privilege Vulnerability
35Monitor
CVE-2025-26669189 days apartWindows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability
35Monitor
CVE-2024-30068490 days apartWindows Kernel Elevation of Privilege Vulnerability
35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: low · data can be read
Integrity: none
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: Low
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Overread BuffersCAPEC-540likelihood: Low · High

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 30, 2026, 3:32 AM UTC

For records you follow, these changes also arrive as notifications. →

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55700

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

No Noroxi analysis for this record yet

We use this product, ask for help

Data sources and verification

CNA: microsoft

CVE.org (CNA)Feb 22, 2026, 5:24 PM UTC
CISA ADPFeb 22, 2026, 5:24 PM UTC
NVDJun 17, 2026, 5:42 AM UTC
FIRST EPSSSep 29, 2026, 12:00 AM UTC
MSRCSep 30, 2026, 3:25 AM UTC

Each line is when that source was last processed for this record.

You’re seeing every CVE. Add your stack to narrow the list down to the ones that affect you.

Add your stack