Linux Kernel up to 5.10.219/5.15.106/6.1.23/6.2.10 OPDESC nfsd4_ops out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.10.219/5.15.106/6.1.23/6.2.10. It has been rated as critical. Affected by this vulnerability is the function OPDESC. This manipulation of the argument nfsd4_ops causes out-of-bounds. This vulnerability is handled as CVE-2023-53680. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.219/5.15.106/6.1.23/6.2.10. It has been declared as problematic. Affected by this vulnerability is the function OPDESC. The manipulation of the argument nfsd4_ops with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

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[].

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2023-53680 since 10/07/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 277757 (Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-115 (ALASKERNEL-5.4-2025-115)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.220, 5.15.107, 6.1.24 or 6.2.11 eliminates this vulnerability. Applying the patch 50827896c365e0f6c8b55ed56d444dafd87c92c5/a64160124d5a078be0c380b1e8a0bad2d040d3a1/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e/f352c41fa718482979e7e6b71b4da2b718e381cc/804d8e0a6e54427268790472781e03bc243f4ee3 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (277757) and CERT Bund (WID-SEC-2025-2229). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • IBM QRadar SIEM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 277757
Nessus Name: Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-115 (ALASKERNEL-5.4-2025-115)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.220/5.15.107/6.1.24/6.2.11
Patch: 50827896c365e0f6c8b55ed56d444dafd87c92c5/a64160124d5a078be0c380b1e8a0bad2d040d3a1/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e/f352c41fa718482979e7e6b71b4da2b718e381cc/804d8e0a6e54427268790472781e03bc243f4ee3

Timelineinfo

10/07/2025 Advisory disclosed
10/07/2025 +0 days CVE reserved
10/07/2025 +0 days VulDB entry created
03/01/2026 +145 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53680 (🔒)
GCVE (CVE): GCVE-0-2023-53680
GCVE (VulDB): GCVE-100-327481
CERT Bund: WID-SEC-2025-2229 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/07/2025 19:24
Updated: 03/01/2026 13:14
Changes: 10/07/2025 19:24 (59), 11/23/2025 06:01 (7), 12/09/2025 07:12 (2), 12/26/2025 02:15 (1), 02/03/2026 19:35 (11), 03/01/2026 13:14 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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