Dashboard / CVE-2023-53680

CVE-2023-53680

HIGH
MEDIUM Priority: 0.02 BB Relevance: 41/100
Published: 2025-10-07 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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[].

Weakness Classification (1)

Affected Software (6)

VendorProductVersion
linux linux_kernel 4.14 – 5.10.220
linux linux_kernel 6.3
linux linux_kernel 6.3
linux linux_kernel 6.3
linux linux_kernel 6.3
linux linux_kernel 6.3

References & Advisories (5)

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.30%
Raw Score 0.003050
Percentile 23.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00305
2026-10-28
0.00305

Intelligence Sources

nvd ref →

External Links