CVE-2025-71149

Rejected identifier for io_uring poll defect

Published Jan 23, 2026 · Updated Jan 23, 2026

The Linux Kernel CNA rejected this identifier, so it no longer represents a confirmed vulnerability in the Linux Kernel. Before rejection, the record described io_uring/poll update handling that lost a completion queue entry when POLL_REMOVE caused a pending POLL_ADD to trigger and overwrote the result with -ECANCELED. Because the identifier is rejected, no attacker gate or security consequence remains confirmed under this CVE record.

CVSS severity4.7
Medium
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

The Linux Kernel CNA rejected this identifier, so it no longer represents a confirmed vulnerability in the Linux Kernel. Before rejection, the record described io_uring/poll update handling that lost a completion queue entry when POLL_REMOVE caused a pending POLL_ADD to trigger and overwrote the result with -ECANCELED. Because the identifier is rejected, no attacker gate or security consequence remains confirmed under this CVE record.

The record

CVE
CVE-2025-71149
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0
  2. Affected versionversion=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <0126560370ed5217958b85657b590ad25e8b9c00
  3. Affected versionversion=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <13a8f7b88c2d40c6b33f6216190478dda95d385f
  4. Affected versionversion=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <84230ad2d2afbf0c44c32967e525c0ad92e26b4e
  5. Affected versionversion=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <8b777ab48441b153502772ecfc78c107d4353f29
  6. Affected versionversion=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <c1669c03bfbc2a9b5ebff4428eecebe734c646fe

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.0; version=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <0126560370ed5217958b85657b590ad25e8b9c00; version=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <13a8f7b88c2d40c6b33f6216190478dda95d385f; version=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <84230ad2d2afbf0c44c32967e525c0ad92e26b4e; version=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <8b777ab48441b153502772ecfc78c107d4353f29; version=97b388d70b53fd7d286ac1b81e5a88bd6af98209 <c1669c03bfbc2a9b5ebff4428eecebe734c646fe

Published CVSS scores

4.7Oracle LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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