What is CVE-2023-53680?

CVE-2023-53680 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Write flaw (CWE-787), affecting Linux kernel versions from 4.14 onward and patched in 5.10.220, 5.15.107, 6.1.24 and others. CVE-2023-53680 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53680?

CVE-2023-53680 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-53680?

Yes, CVE-2023-53680 has been patched. Fixed versions include 5.10.220, 5.15.107, 6.1.24 and others. If you are running Linux kernel 4.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53680 actively exploited?

CVE-2023-53680 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2023-53680

High

In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are careful to avoid calling it with an out-of-bounds opnum value. nfsd4_decode_compound() is not so careful, and can invoke OPDESC() with opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end of nfsd4_ops[].

Package Linux Kernel

Published 2025-10-07

Last modified 2026-02-26

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-787

CVE-2023-53680 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.14 and later are affected. Fixed in 5.10.220, 5.15.107, 6.1.24, 6.2.11, 6.3 and their respective stable series.

Affected from

≥ 4.14

Fixed in

✓ 5.10.220 5.10.x ✓ 5.15.107 5.15.x ✓ 6.1.24 6.1.x ✓ 6.2.11 6.2.x ✓ 6.3

References

5 total

Kernel Git
https://git.kernel.org/stable/c/50827896c365e0f6c8b55ed56d444dafd87c92c5

Patch
Kernel Git
https://git.kernel.org/stable/c/804d8e0a6e54427268790472781e03bc243f4ee3

Patch
Kernel Git
https://git.kernel.org/stable/c/a64160124d5a078be0c380b1e8a0bad2d040d3a1

Patch
Kernel Git
https://git.kernel.org/stable/c/f352c41fa718482979e7e6b71b4da2b718e381cc

Patch
Kernel Git
https://git.kernel.org/stable/c/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e

Patch

Details

CVE ID CVE-2023-53680

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-10-07

Modified 2026-02-26

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-53680?

CVE-2023-53680 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 4.14 onward and has been patched in 5.10.220, 5.15.107, 6.1.24 and others. CVE-2023-53680 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53680?

CVE-2023-53680 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-53680?

Yes. CVE-2023-53680 has been patched. Fixed versions include 5.10.220, 5.15.107, 6.1.24 and others. If you are running Linux kernel 4.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53680 actively exploited?

No. CVE-2023-53680 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.