CVE-2023-53680

HIGH EPSS 3.8%
Published Oct 7, 20259mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 7, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥4.14  –  <5.10.220
linuxlinux_kernel*≥5.11  –  <5.15.107
linuxlinux_kernel*≥5.16  –  <6.1.24
linuxlinux_kernel*≥6.2  –  <6.2.11
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any

References 5

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

Remediation

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