CVE Explorer
CVE-2026-40706
In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfs_build_permissions_posix() in acls.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered on the READ path (stat, readdir, open) when processing a security descriptor with multiple ACCESS_DENIED ACEs containing WRITE_OWNER from distinct group SIDs.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"NTFS-3G","vendor":"Tuxera","versions":[{"lessThan":"2026.2.25","status":"affected","version":"2022.10.3","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/cna/problemTypes/0/descriptions/0
Source references
6 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/04/21/4"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/adp/0/references/1
{"url":"https://github.com/tuxera/ntfs-3g/blob/d3ace19838ce37cfde55294e76841e6d2f393f9e/libntfs-3g/acls.c#L4011-L4027"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/cna/references/0
{"url":"https://github.com/tuxera/ntfs-3g/releases/tag/2026.2.25"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/cna/references/3
{"url":"https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-4cwv-5285-63v9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/cna/references/2
{"url":"https://lists.debian.org/debian-lts-announce/2026/04/msg00024.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/adp/0/references/0
{"url":"https://www.openwall.com/lists/oss-security/2026/04/21/4"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d0a187488c532dc41ebf3fcd0772ae0d9e3648fda879cc45bb6f3a51f7b236c3 · sha256:e656e15a12803e0e… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.