CVE-2026-25172Network attack vector

Authenticated remote code execution via RRAS integer overflow

Published Mar 10, 2026 · Updated Mar 10, 2026

Integer overflow in Microsoft Windows RRAS allows remote authenticated users to execute code through a network interaction. Microsoft has not disclosed the affected RRAS routine, the attacker-controlled field, or the arithmetic operation that produces the overflow. Exploitation requires low privileges and user interaction; successful code execution can compromise the affected Windows Server host.

CVSS severity8.0
High
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Microsoft Windows RRAS allows remote authenticated users to execute code through a network interaction. Microsoft has not disclosed the affected RRAS routine, the attacker-controlled field, or the arithmetic operation that produces the overflow. Exploitation requires low privileges and user interaction; successful code execution can compromise the affected Windows Server host.

The record

CVE
CVE-2026-25172
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Microsoft
Product
Windows Server 2019
Classifications
CWE-122, CWE-190, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.17763.0 <10.0.17763.8511

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.8511
Microsoft · Windows Server 2025 (Server Core installation)version=10.0.26100.0 <10.0.26100.32522
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.8957
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.25973
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.25973
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.2207
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.8957
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.23074
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.8511
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.4893
Microsoft · Windows Server 2025version=10.0.26100.0 <10.0.26100.32522
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.23074

Published CVSS scores

8.0Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
CWE-190Integer Overflow or Wraparound
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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