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HIGH

CVE-2026-69631

CVSS v3

7.5

HIGH

EPSS Score

1.2 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

Integer overflow or wraparound in Windows DNS allows an unauthorized attacker to deny service over a network.

Technical details

CVSS v3 Vector
3.1
Published
2026-09-08
Last Modified
2026-09-08

Frequently asked questions

What is CVE-2026-69631?

Integer overflow or wraparound in Windows DNS allows an unauthorized attacker to deny service over a network.

Is CVE-2026-69631 actively exploited?

Active exploitation of CVE-2026-69631 has not been confirmed. The EPSS score is 1.2%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-69631?

CVE-2026-69631 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.

Is CVE-2026-69631 affecting your environment?

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