CVE-2025-39867

Rejected CVE record

Published Sep 23, 2025 · Updated Sep 23, 2025

CVE-2025-39867 is a rejected CVE record that no longer represents a valid vulnerability in the Linux Kernel or affected releases. Before rejection, the record described a non-AVX2 nft_set_pipapo empty-set path that dereferenced a null per-CPU scratch map. The CNA removed the patch references and supplied no replacement identifier, so the former affected ranges and mechanism must not drive vulnerability triage or detection.

CVSS severity5.5
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

CVE-2025-39867 is a rejected CVE record that no longer represents a valid vulnerability in the Linux Kernel or affected releases. Before rejection, the record described a non-AVX2 nft_set_pipapo empty-set path that dereferenced a null per-CPU scratch map. The CNA removed the patch references and supplied no replacement identifier, so the former affected ranges and mechanism must not drive vulnerability triage or detection.

The record

CVE
CVE-2025-39867
Published
Sep 23, 2025
Updated
Sep 23, 2025
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2025Record 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=3a2d45819a193daccb36baeb524bf883caa5a363 <44b2be6d5994ddf07ecc86c01d3279bfa13e9ef6
  2. Affected versionversion=610c1e196fc86664869c3265818ece602d2adc58 <51a321b480d1e753667f6aea497312461563f9fe
  3. Affected versionversion=6.17-rc1
  4. Affected versionversion=d8d871a35ca9ee4881d34995444ed1cb826d01db <30c1d25b9870d551be42535067d5481668b5e6f3

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linux Kernelversion=3a2d45819a193daccb36baeb524bf883caa5a363 <44b2be6d5994ddf07ecc86c01d3279bfa13e9ef6; version=610c1e196fc86664869c3265818ece602d2adc58 <51a321b480d1e753667f6aea497312461563f9fe; version=6.17-rc1; version=d8d871a35ca9ee4881d34995444ed1cb826d01db <30c1d25b9870d551be42535067d5481668b5e6f3

Published CVSS scores

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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