What is CVE-2026-89610?

CVE-2026-89610 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10. CVE-2026-89610 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-89610?

CVE-2026-89610 has a CVSS score of 9.8 out of 10, rated Critical severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-89610?

Yes, CVE-2026-89610 has been patched. Fixed versions include 7.2.4 and 7.3-rc1.

Is CVE-2026-89610 actively exploited?

CVE-2026-89610 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-89610

Critical

In the Linux kernel, the following vulnerability has been resolved: ntfs: verify run length exceeding volume boundary The mapping pairs decoder validates that the starting LCN is within the volume but does not check if the run extends beyond the volume boundary. A malformed NTFS image with a crafted mapping pairs array could cause the kernel to access memory beyond the volume boundary, potentially leading to memory corruption and privilege escalation. Add validation to ensure lcn + length stays within nr_clusters.

Package Linux Kernel

Published 2026-09-11

Last modified 2026-09-13

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

9.8

out of 10

Critical

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Fixed in 7.2.4, 7.3-rc1 and their respective stable series.

Fixed in

✓ 7.2.4 7.2.x ✓ 7.3-rc1

References

2 total

Details

CVE ID CVE-2026-89610

Severity Critical

CVSS score 9.8 / 10

CVSS version 3.1

Published 2026-09-11

Modified 2026-09-13

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-89610?

CVE-2026-89610 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10 . CVE-2026-89610 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-89610?

CVE-2026-89610 has a CVSS score of 9.8 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-89610?

Yes. CVE-2026-89610 has been patched. Fixed versions include 7.2.4 and 7.3-rc1.
Is CVE-2026-89610 actively exploited?

No. CVE-2026-89610 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.