01 Record

CVE-2026-89483

nvme: zero the discard fallback page

HighPUBLISHEDCNA: Linux

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

View raw JSON

02 Description

nvme: zero the discard fallback page

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.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited 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

0.57% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 46.9% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N

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

2026-09-11 19:43Z1 MO AGO

Last updated

2026-10-19 08:47Z10 DAYS AGO

Reserved

2026-09-11

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

CWE-824Access of Uninitialized PointerBase

Data version

5.2

Document digest

019a8434bdbd29ca4497cebe54433d63891ac45007bcd47180e3bd5b2a7d5105

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux530436c45ef2e446c12538a400e465929a0b3ade to < 76139b5bbf531e675934b97227be3521c7fdd537, 530436c45ef2e446c12538a400e465929a0b3ade to < 3f84d2bd0d8ae8c7e8e0f8fc3cbf018a282971a1, 530436c45ef2e446c12538a400e465929a0b3ade to < 415f2772ebcbc7f3f1ab1a71915dab82cee3465e, 530436c45ef2e446c12538a400e465929a0b3ade to < 66b5af23b6f956e57f8205c46aa80b054631be34, 530436c45ef2e446c12538a400e465929a0b3ade to < dc4d4b70a863f7e39ef8bd137634be4e6db8b084, 530436c45ef2e446c12538a400e465929a0b3ade to < 67551d8430df94c827e1830bd3a5fae1f66a5219, 530436c45ef2e446c12538a400e465929a0b3ade to < f5827817b4fc7feeabf4f53fb4b626e6edc52fef, 530436c45ef2e446c12538a400e465929a0b3ade to < bededeaaeff404978a5a8e2a605a6c3017cddd3e, ffa56cbdd2409b522b4cb56461bea1c45889417b, 8b0acb768a06083b0d28bace1481c1f6679e76f4, 4.19.92 to < 4.20, 5.4.7 to < 5.5, 5.5—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/76139b5bbf531e675934b97227be3521c7fdd537
git.kernel.orghttps://git.kernel.org/stable/c/3f84d2bd0d8ae8c7e8e0f8fc3cbf018a282971a1
git.kernel.orghttps://git.kernel.org/stable/c/415f2772ebcbc7f3f1ab1a71915dab82cee3465e
git.kernel.orghttps://git.kernel.org/stable/c/66b5af23b6f956e57f8205c46aa80b054631be34
git.kernel.orghttps://git.kernel.org/stable/c/dc4d4b70a863f7e39ef8bd137634be4e6db8b084
git.kernel.orghttps://git.kernel.org/stable/c/67551d8430df94c827e1830bd3a5fae1f66a5219
git.kernel.orghttps://git.kernel.org/stable/c/f5827817b4fc7feeabf4f53fb4b626e6edc52fef
git.kernel.orghttps://git.kernel.org/stable/c/bededeaaeff404978a5a8e2a605a6c3017cddd3e

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.