01 Record

CVE-2026-74595

fscrypt: use the mount idmap for the owner check in fscrypt_ioctl_set_policy()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

fscrypt: use the mount idmap for the owner check in fscrypt_ioctl_set_policy()

03 Exploitation and scoring

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

0.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 0.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-16.

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

2026-08-22 15:31Z2 MO AGO

Last updated

2026-10-16 19:05Z12 DAYS AGO

Reserved

2026-08-15

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-628Function Call with Incorrectly Specified ArgumentsBase

Data version

5.2

Document digest

a43117ddd3c07f4bc2863572daa57feadc1fec179b804ffdf778408e834dfda6

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux14f3db5542e62bcf6fe088a09760ac52d55306c5 to < 174633a468817a49bd474bcfc9067c84e54efe68, 14f3db5542e62bcf6fe088a09760ac52d55306c5 to < 0baeb730044981f5ec5fb7d62a3763835ea606f6, 14f3db5542e62bcf6fe088a09760ac52d55306c5 to < 33b7e810ce09955aa02f3b632455cf5e7ac990a9, 14f3db5542e62bcf6fe088a09760ac52d55306c5 to < 6a67c460b12315033268dce597546984fe5739e7, 14f3db5542e62bcf6fe088a09760ac52d55306c5 to < 653e888a24c87b8bbeab44d7e558a1c1a3641088, 14f3db5542e62bcf6fe088a09760ac52d55306c5 to < 98516ba8b817f34e86bdd7a5b7a383cff75c3ddf, 14f3db5542e62bcf6fe088a09760ac52d55306c5 to < cf6c993c0feca7984797e634deba3c80342e199a, 5.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/174633a468817a49bd474bcfc9067c84e54efe68
git.kernel.orghttps://git.kernel.org/stable/c/0baeb730044981f5ec5fb7d62a3763835ea606f6
git.kernel.orghttps://git.kernel.org/stable/c/33b7e810ce09955aa02f3b632455cf5e7ac990a9
git.kernel.orghttps://git.kernel.org/stable/c/6a67c460b12315033268dce597546984fe5739e7
git.kernel.orghttps://git.kernel.org/stable/c/653e888a24c87b8bbeab44d7e558a1c1a3641088
git.kernel.orghttps://git.kernel.org/stable/c/98516ba8b817f34e86bdd7a5b7a383cff75c3ddf
git.kernel.orghttps://git.kernel.org/stable/c/cf6c993c0feca7984797e634deba3c80342e199a

07 Fixed in

Debian 12

linux
Fixed in 6.1.187-1
linux-6.12
Fixed in 6.12.107-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.105-1

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

Debian 14

linux
Fixed in 7.1.9-1

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