CVE-2026-40706

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.6% of scored records. A rank, not a probability.

NVD base score

8.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-26.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-21 00:00Z6 MO AGO

Last updated

2026-04-22 15:35Z6 MO AGO

Reserved

2026-04-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.4)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant

Data version

5.2

Document digest

e656e15a12803e0e3097ca1a5164626205b297aba9a0f6c50a8342a6b187d5bd

• github.comhttps://github.com/tuxera/ntfs-3g/blob/d3ace19838ce37cfde55294e76841e6d2f393f9e/libntfs-3g/acls.c#L4011-L4027
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2026/04/21/4
• github.comhttps://github.com/tuxera/ntfs-3g/security/advisories/GHSA-4cwv-5285-63v9
• github.comhttps://github.com/tuxera/ntfs-3g/releases/tag/2026.2.25
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2026/04/msg00024.html
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/04/21/4