CVE-2026-26111 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.

Published: 2026-03-10 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-26111 is rated Moderate Risk (51.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.84%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-26111

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.84% +0.77%
2 2026-03-11 — 0.06% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-26111

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.0 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.1 5.9 [email protected]

Weakness enumeration for CVE-2026-26111

Affected software / configurations for CVE-2026-26111

Vendor Product Version Raw CPE
microsoft windows_server_2012 < 6.2.9200.25973 cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:standard:*:x64:*
microsoft windows_server_2012 r2 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
microsoft windows_server_2016 < 10.0.14393.8957 cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:-:*:x64:*
microsoft windows_server_2019 < 10.0.17763.8511 cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:-:*:x64:*
microsoft windows_server_2022 < 10.0.20348.4893 cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:-:*:x64:*
microsoft windows_server_2025 < 10.0.26100.32522 cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:-:*:x64:*

References for CVE-2026-26111

cvelogic Threat Intelligence