CVE-2026-72497

Kernel memory corruption via unchecked RDMA queue slots

Published Aug 15, 2026 · Updated Aug 15, 2026

Improper input validation in Linux 6.12 through 7.1.4 allows local users to corrupt memory via a crafted bnxt_re queue request. bnxt_re_init_sq_attr accepts a user-supplied sq_slots value of zero or above 65,536 for variable-WQE send queues, then sizes and programs queue structures from that unchecked value. Exploitation requires local access to an exposed RDMA uverbs device on supported bnxt_re hardware; consequences include kernel-memory disclosure or corruption and a host crash or hang.

CVSS severity8.8
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Linux 6.12 through 7.1.4 allows local users to corrupt memory via a crafted bnxt_re queue request. bnxt_re_init_sq_attr accepts a user-supplied sq_slots value of zero or above 65,536 for variable-WQE send queues, then sizes and programs queue structures from that unchecked value. Exploitation requires local access to an exposed RDMA uverbs device on supported bnxt_re hardware; consequences include kernel-memory disclosure or corruption and a host crash or hang.

The record

CVE
CVE-2026-72497
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-680, CWE-805, CWE-20, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record 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=6.12
  2. Affected versionversion=d8ea645d6984c84a87032063a0941f15a323831f <a59d815cbe667929b693b5fa6716a074e6a31c5b
  3. Affected versionversion=d8ea645d6984c84a87032063a0941f15a323831f <dc95931b7e1326dacae547874bf38c092e5960d8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.12; version=d8ea645d6984c84a87032063a0941f15a323831f <a59d815cbe667929b693b5fa6716a074e6a31c5b; version=d8ea645d6984c84a87032063a0941f15a323831f <dc95931b7e1326dacae547874bf38c092e5960d8

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
5.5Red HatCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-680Integer Overflow to Buffer Overflow
CWE-805Buffer Access with Incorrect Length Value
CWE-20Improper Input Validation
T1068Exploitation for Privilege Escalation

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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