CVE-2026-72402

Kernel-address disclosure via unmasked verifier-log pseudo pointers

Published Aug 15, 2026 · Updated Aug 15, 2026

Information disclosure in the Linux kernel BPF verifier 5.10.0 through 7.1.4 allows local users to read kernel pointers from logs. print_bpf_insn() fails to mask rewritten addresses for BPF_PSEUDO_MAP_IDX, BPF_PSEUDO_MAP_IDX_VALUE, and BPF_PSEUDO_BTF_ID instructions. Access requires permission to load a qualifying BPF program and obtain its verifier log; the flaw exposes addresses without modifying kernel state.

CVSS severity3.3
Low
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in the Linux kernel BPF verifier 5.10.0 through 7.1.4 allows local users to read kernel pointers from logs. print_bpf_insn() fails to mask rewritten addresses for BPF_PSEUDO_MAP_IDX, BPF_PSEUDO_MAP_IDX_VALUE, and BPF_PSEUDO_BTF_ID instructions. Access requires permission to load a qualifying BPF program and obtain its verifier log; the flaw exposes addresses without modifying kernel state.

The record

CVE
CVE-2026-72402
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-200
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=4976b718c3551faba2c0616ef55ebeb74db1c5ca <1c53d16b174dd9e02243fc0e85089e2aa6a0d21a
  2. Affected versionversion=4976b718c3551faba2c0616ef55ebeb74db1c5ca <72a85e9464a5332fb2cd7efd26d9295275ceda2d
  3. Affected versionversion=5.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4976b718c3551faba2c0616ef55ebeb74db1c5ca <1c53d16b174dd9e02243fc0e85089e2aa6a0d21a; version=4976b718c3551faba2c0616ef55ebeb74db1c5ca <72a85e9464a5332fb2cd7efd26d9295275ceda2d; version=5.10

Published CVSS scores

3.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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-200Exposure of Sensitive Information to an Unauthorized Actor

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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