CVE-2025-39695Public exploit

Local service interruption via delayed RDMA packet cleanup

Published Sep 5, 2025 · Updated Sep 5, 2025

Resource lifetime error in Linux kernel RDMA/rxe 6.10 through 6.17-rc2 allows local users to cause service interruption with delayed packets. rxe_skb_tx_dtor resolves a queue pair by pool index after transmission without keeping a direct queue-pair reference, so delayed SKB destruction can follow resource release. Reachability requires local low-privilege access and an active RXE path on a network device that retains packets; no data disclosure or modification is reported.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource lifetime error in Linux kernel RDMA/rxe 6.10 through 6.17-rc2 allows local users to cause service interruption with delayed packets. rxe_skb_tx_dtor resolves a queue pair by pool index after transmission without keeping a direct queue-pair reference, so delayed SKB destruction can follow resource release. Reachability requires local low-privilege access and an active RXE path on a network device that retains packets; no data disclosure or modification is reported.

The record

CVE
CVE-2025-39695
Published
Sep 5, 2025
Updated
Sep 5, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1a633bdc8fd9e9e4a9f9a668ae122edfc5aacc86 <3c3e9a9f2972b364e8c2cfbfdeb23c6d6be4f87f
  2. Affected versionversion=1a633bdc8fd9e9e4a9f9a668ae122edfc5aacc86 <732d4bd7b78a2752ad43cc39287ef41893c5eee2
  3. Affected versionversion=1a633bdc8fd9e9e4a9f9a668ae122edfc5aacc86 <8ead139a8edef485cc36d3a792e2ae5dd538339a
  4. Affected versionversion=6.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1a633bdc8fd9e9e4a9f9a668ae122edfc5aacc86 <3c3e9a9f2972b364e8c2cfbfdeb23c6d6be4f87f; version=1a633bdc8fd9e9e4a9f9a668ae122edfc5aacc86 <732d4bd7b78a2752ad43cc39287ef41893c5eee2; version=1a633bdc8fd9e9e4a9f9a668ae122edfc5aacc86 <8ead139a8edef485cc36d3a792e2ae5dd538339a; version=6.10

Published CVSS scores

5.5NIST NVDCVSS: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.

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No observations available

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

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

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Technologies

Your stack

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Your stack

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