What is CVE-2026-97589?

CVE-2026-97589 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10, affecting Linux kernel versions from 6.16 onward and patched in 6.18.53, 7.2.7 and 7.3-rc3. CVE-2026-97589 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-97589?

CVE-2026-97589 has a CVSS score of 7.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-97589?

Yes, CVE-2026-97589 has been patched. Fixed versions include 6.18.53, 7.2.7 and 7.3-rc3. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-97589 actively exploited?

CVE-2026-97589 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-97589

High

In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix wrong return code to engine in asynch callbacks When crypto_finalize_hash_request() or crypto_finalize_skcipher_request() explicitly completes a request, the do_one_request callback must return 0 to indicate successful handling. Returning a negative error code causes the crypto engine to assume the driver failed to take ownership and triggers a second completion via crypto_request_complete(), resulting in a double completion. This pattern occurs in paes_s390.c 4 times and once in phmac_s390.c. Fixed in phmac_do_one_request() and all four paes do_one_request callbacks (ecb, cbc, ctr, xts) by returning 0 after explicit finalization instead of propagating the error code.

Package Linux Kernel

Published 2026-09-25

Last modified 2026-09-25

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.0

out of 10

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.16 and later are affected. Fixed in 6.18.53, 7.2.7, 7.3-rc3 and their respective stable series.

Affected from

≥ 6.16

Fixed in

✓ 6.18.53 6.18.x ✓ 7.2.7 7.2.x ✓ 7.3-rc3

References

3 total

Details

CVE ID CVE-2026-97589

Severity High

CVSS score 7.0 / 10

CVSS version 3.1

Published 2026-09-25

Modified 2026-09-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-97589?

CVE-2026-97589 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 . It affects Linux kernel versions from 6.16 onward and has been patched in 6.18.53, 7.2.7 and 7.3-rc3. CVE-2026-97589 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-97589?

CVE-2026-97589 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-97589?

Yes. CVE-2026-97589 has been patched. Fixed versions include 6.18.53, 7.2.7 and 7.3-rc3. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-97589 actively exploited?

No. CVE-2026-97589 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.