CVE-2025-71096

Service interruption via missing RDMA netlink attribute

Published Jan 13, 2026 · Updated Jan 13, 2026

Uninitialized resource use in Linux Kernel allows local users to cause a service interrupt via a crafted RDMA netlink response. The ib_nl_handle_ip_res_resp path indexes the DGID entry without first populating its parsed attribute array, leaving stack data uninitialized when LS_NLA_TYPE_DGID is absent. A low-privileged local process must answer a kernel-initiated RDMA_NL_LS_OP_IP_RESOLVE query without the required DGID, and the reported impact is limited to availability.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Uninitialized resource use in Linux Kernel allows local users to cause a service interrupt via a crafted RDMA netlink response. The ib_nl_handle_ip_res_resp path indexes the DGID entry without first populating its parsed attribute array, leaving stack data uninitialized when LS_NLA_TYPE_DGID is absent. A low-privileged local process must answer a kernel-initiated RDMA_NL_LS_OP_IP_RESOLVE query without the required DGID, and the reported impact is limited to availability.

The record

CVE
CVE-2025-71096
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-908, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 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=4.7
  2. Affected versionversion=ae43f8286730d1f2d241c34601df59f6d2286ac4 <0b948afc1ded88b3562c893114387f34389eeb94
  3. Affected versionversion=ae43f8286730d1f2d241c34601df59f6d2286ac4 <45532638de5da24c201aa2a9b3dd4b054064de7b
  4. Affected versionversion=ae43f8286730d1f2d241c34601df59f6d2286ac4 <9d85524789c2f17c0e87de8d596bcccc3683a1fc
  5. Affected versionversion=ae43f8286730d1f2d241c34601df59f6d2286ac4 <a7b8e876e0ef0232b8076972c57ce9a7286b47ca
  6. Affected versionversion=ae43f8286730d1f2d241c34601df59f6d2286ac4 <acadd4097d25d6bd472bcb3f9f3eba2b5105d1ec

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=4.7; version=ae43f8286730d1f2d241c34601df59f6d2286ac4 <0b948afc1ded88b3562c893114387f34389eeb94; version=ae43f8286730d1f2d241c34601df59f6d2286ac4 <45532638de5da24c201aa2a9b3dd4b054064de7b; version=ae43f8286730d1f2d241c34601df59f6d2286ac4 <9d85524789c2f17c0e87de8d596bcccc3683a1fc; version=ae43f8286730d1f2d241c34601df59f6d2286ac4 <a7b8e876e0ef0232b8076972c57ce9a7286b47ca; version=ae43f8286730d1f2d241c34601df59f6d2286ac4 <acadd4097d25d6bd472bcb3f9f3eba2b5105d1ec

Published CVSS scores

5.5CanonicalCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource
T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo