CVE-2023-53680

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[].

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/50827896c365e0f6c8b55ed56d444dafd87c92c5	Patch
https://git.kernel.org/stable/c/804d8e0a6e54427268790472781e03bc243f4ee3	Patch
https://git.kernel.org/stable/c/a64160124d5a078be0c380b1e8a0bad2d040d3a1	Patch
https://git.kernel.org/stable/c/f352c41fa718482979e7e6b71b4da2b718e381cc	Patch
https://git.kernel.org/stable/c/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc5::::::

History

No history.

Information

Published : 2025-10-07 16:15

Updated : 2026-08-04 10:19

NVD link : CVE-2023-53680

Mitre link : CVE-2023-53680

CVE.ORG link : CVE-2023-53680

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

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