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HIGH

CVE-2026-68878

CVSS v3

8

HIGH

EPSS Score

0.8 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized attacker to elevate privileges over a network.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Published
2026-09-08
Last Modified
2026-09-24

Frequently asked questions

What is CVE-2026-68878?

Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized attacker to elevate privileges over a network.

Is CVE-2026-68878 actively exploited?

Active exploitation of CVE-2026-68878 has not been confirmed. Its EPSS score was 0.8% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-68878?

CVE-2026-68878 has a CVSS v3 base score of 8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C.

Is CVE-2026-68878 affecting your environment?

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