01 Record

CVE-2026-89779

fs/ntfs3: validate ef->size covers the record's name and value

CriticalPUBLISHEDCNA: Linux

CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

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02 Description

fs/ntfs3: validate ef->size covers the record's name and value

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.69% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 52.5% of scored records. A rank, not a probability.
NVD base score: 9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD analysis status: Received. NVD last modified this record on 2026-10-19.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

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.

04 Metadata

Published

2026-09-16 08:48Z1 MO AGO

Last updated

2026-10-19 08:52Z10 DAYS AGO

Reserved

2026-09-11

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

78b38714af83d996ecfec314e582bafce1d85d34225b6ffa25dde82eb5e3e4e8

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux333feb7ba84f69f9b423422417aaac54fd9e7c84 to < b27e68ad818a4ca2cef8f35f97e75d756714c818, 000a9a72efa4a9df289bab9c9e8ba1639c72e0d6 to < 28a924c7e67e6d71abeb04860b61166fecb027fc, 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b to < d585ed08308909c7e6fefb4e8a258aeb29b19ff9, 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b to < 077df8464cf24f8ffc82fb6efec2ae600686e699, 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b to < aab1880058ac767d3ea9388a9a7221c776c22c44, 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b to < c8a109c9e23a2c7fd548473dde728b2cb8188146, 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b to < c22f91d82cb9a29d22bdffdce6c803467984ad0c, 5.15.121 to < 5.15.221, 6.1.40 to < 6.1.188, 6.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/b27e68ad818a4ca2cef8f35f97e75d756714c818
git.kernel.orghttps://git.kernel.org/stable/c/28a924c7e67e6d71abeb04860b61166fecb027fc
git.kernel.orghttps://git.kernel.org/stable/c/d585ed08308909c7e6fefb4e8a258aeb29b19ff9
git.kernel.orghttps://git.kernel.org/stable/c/077df8464cf24f8ffc82fb6efec2ae600686e699
git.kernel.orghttps://git.kernel.org/stable/c/aab1880058ac767d3ea9388a9a7221c776c22c44
git.kernel.orghttps://git.kernel.org/stable/c/c8a109c9e23a2c7fd548473dde728b2cb8188146
git.kernel.orghttps://git.kernel.org/stable/c/c22f91d82cb9a29d22bdffdce6c803467984ad0c

07 Fixed in

Debian 12

linux
Fixed in 6.1.190-1
linux-6.12
Fixed in 6.12.111-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.111-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.2.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.