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HIGH

CVE-2026-20868

CVSS v3

8.8

HIGH

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Technical details

Published
2026-01-13
Last Modified
2026-02-10

Frequently asked questions

What is CVE-2026-20868?

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Is CVE-2026-20868 actively exploited?

Active exploitation of CVE-2026-20868 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-20868?

CVE-2026-20868 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-20868 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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