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7.1
HIGH CVSS 3.1
CVE-2026-72049
ieee802154: admin-gate legacy LLSEC dump operations
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: ieee802154: admin-gate legacy LLSEC dump operations In net/ieee802154/netlink.c, the legacy IEEE802154_NL family ops table builds the LLSEC dump entries (LLSEC_LIST_KEY, LLSEC_LIST_DEV, LLSEC_LIST_DEVKEY, LLSEC_LIST_SECLEVEL) with IEEE802154_DUMP() which sets no .flags, so generic netlink runs them ungated. The modern nl802154 family admin-gates the equivalent reads via NL802154_CMD_GET_SEC_KEY and friends with .flags = GENL_ADMIN_PERM. Any local uid that can open AF_NETLINK / NETLINK_GENERIC can resolve the "802.15.4 MAC" family and dump LLSEC_LIST_KEY on any wpan netdev that has an LLSEC key installed; the dump handler writes the raw 16-byte AES-128 key bytes (IEEE802154_ATTR_LLSEC_KEY_BYTES, copied verbatim from struct ieee802154_llsec_key.key) into the reply. Recovering the AES key compromises 802.15.4 LLSEC link confidentiality and authenticity, since LLSEC uses CCM* and the same key authenticates and encrypts frames. Impact: any local uid with no capabilities can read the raw 16-byte AES-128 LLSEC key from the kernel keytable on any wpan netdev that has an administrator-installed LLSEC key, by issuing an LLSEC_LIST_KEY dump on the legacy IEEE802154_NL generic-netlink family. Introduce IEEE802154_DUMP_PRIV() mirroring IEEE802154_DUMP() but setting .flags = GENL_ADMIN_PERM, and use it for the four LLSEC dump entries. LIST_PHY and LIST_IFACE retain IEEE802154_DUMP() because the modern nl802154 family exposes their equivalents to unprivileged readers by design (NL802154_CMD_GET_WPAN_PHY and NL802154_CMD_GET_INTERFACE carry "can be retrieved by unprivileged users" annotations).

Details
INFO

Published Date :

Aug. 15, 2026, 6:21 a.m.

Last Modified :

Aug. 17, 2026, 6:18 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-72049 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Update the Linux kernel to prevent unauthorized LLSEC key disclosure.
  • Update the Linux kernel to the latest version.
  • Apply the security patch for the ieee802154 module.
  • Configure netlink generic netlink family permissions.
  • Monitor system logs for suspicious activity.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-72049.

URL Resource
https://git.kernel.org/stable/c/09fd25cd8cd80a6b3edef04e53a7324d06ac2180
https://git.kernel.org/stable/c/1905ebabe638c946aced00c4bb664da26cac56d5
https://git.kernel.org/stable/c/3465035ba18b1ed50f8d201897d14135d20532b0
https://git.kernel.org/stable/c/5abe94a205539d27945cda3ba43fdcfe295cf2c8
https://git.kernel.org/stable/c/6383248058956f2a52d720b1e9f8921099cdae04
https://git.kernel.org/stable/c/9c1e0b6d49471a712511d23fc9d06901561135e8
https://git.kernel.org/stable/c/dffe745760f38fac0b8288e0dc4759b23d9888ff
https://git.kernel.org/stable/c/e84708ef7521f3bffc85a449954042018abbd60e
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72049 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-72049 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-72049 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-72049 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '3465035ba18b1ed50f8d201897d14135d20532b0', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': 'dffe745760f38fac0b8288e0dc4759b23d9888ff', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': 'e84708ef7521f3bffc85a449954042018abbd60e', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '5abe94a205539d27945cda3ba43fdcfe295cf2c8', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '09fd25cd8cd80a6b3edef04e53a7324d06ac2180', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '1905ebabe638c946aced00c4bb664da26cac56d5', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '6383248058956f2a52d720b1e9f8921099cdae04', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '9c1e0b6d49471a712511d23fc9d06901561135e8', 'versionType': 'git'}], 'programFiles': ['net/ieee802154/ieee802154.h', 'net/ieee802154/netlink.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ieee802154/ieee802154.h', 'net/ieee802154/netlink.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '3465035ba18b1ed50f8d201897d14135d20532b0', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': 'dffe745760f38fac0b8288e0dc4759b23d9888ff', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': 'e84708ef7521f3bffc85a449954042018abbd60e', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '5abe94a205539d27945cda3ba43fdcfe295cf2c8', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '09fd25cd8cd80a6b3edef04e53a7324d06ac2180', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '1905ebabe638c946aced00c4bb664da26cac56d5', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '6383248058956f2a52d720b1e9f8921099cdae04', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '9c1e0b6d49471a712511d23fc9d06901561135e8', 'versionType': 'git'}], 'programFiles': ['net/ieee802154/ieee802154.h', 'net/ieee802154/netlink.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ieee802154/ieee802154.h', 'net/ieee802154/netlink.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 15, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '3465035ba18b1ed50f8d201897d14135d20532b0', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': 'dffe745760f38fac0b8288e0dc4759b23d9888ff', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': 'e84708ef7521f3bffc85a449954042018abbd60e', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '5abe94a205539d27945cda3ba43fdcfe295cf2c8', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '09fd25cd8cd80a6b3edef04e53a7324d06ac2180', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '1905ebabe638c946aced00c4bb664da26cac56d5', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '6383248058956f2a52d720b1e9f8921099cdae04', 'versionType': 'git'}, {'status': 'affected', 'version': '3e9c156e2c210ab67b12b1b692983a6b97c19d3f', 'lessThan': '9c1e0b6d49471a712511d23fc9d06901561135e8', 'versionType': 'git'}], 'programFiles': ['net/ieee802154/ieee802154.h', 'net/ieee802154/netlink.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/ieee802154/ieee802154.h', 'net/ieee802154/netlink.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: ieee802154: admin-gate legacy LLSEC dump operations In net/ieee802154/netlink.c, the legacy IEEE802154_NL family ops table builds the LLSEC dump entries (LLSEC_LIST_KEY, LLSEC_LIST_DEV, LLSEC_LIST_DEVKEY, LLSEC_LIST_SECLEVEL) with IEEE802154_DUMP() which sets no .flags, so generic netlink runs them ungated. The modern nl802154 family admin-gates the equivalent reads via NL802154_CMD_GET_SEC_KEY and friends with .flags = GENL_ADMIN_PERM. Any local uid that can open AF_NETLINK / NETLINK_GENERIC can resolve the "802.15.4 MAC" family and dump LLSEC_LIST_KEY on any wpan netdev that has an LLSEC key installed; the dump handler writes the raw 16-byte AES-128 key bytes (IEEE802154_ATTR_LLSEC_KEY_BYTES, copied verbatim from struct ieee802154_llsec_key.key) into the reply. Recovering the AES key compromises 802.15.4 LLSEC link confidentiality and authenticity, since LLSEC uses CCM* and the same key authenticates and encrypts frames. Impact: any local uid with no capabilities can read the raw 16-byte AES-128 LLSEC key from the kernel keytable on any wpan netdev that has an administrator-installed LLSEC key, by issuing an LLSEC_LIST_KEY dump on the legacy IEEE802154_NL generic-netlink family. Introduce IEEE802154_DUMP_PRIV() mirroring IEEE802154_DUMP() but setting .flags = GENL_ADMIN_PERM, and use it for the four LLSEC dump entries. LIST_PHY and LIST_IFACE retain IEEE802154_DUMP() because the modern nl802154 family exposes their equivalents to unprivileged readers by design (NL802154_CMD_GET_WPAN_PHY and NL802154_CMD_GET_INTERFACE carry "can be retrieved by unprivileged users" annotations).
    Added Reference https://git.kernel.org/stable/c/09fd25cd8cd80a6b3edef04e53a7324d06ac2180
    Added Reference https://git.kernel.org/stable/c/1905ebabe638c946aced00c4bb664da26cac56d5
    Added Reference https://git.kernel.org/stable/c/3465035ba18b1ed50f8d201897d14135d20532b0
    Added Reference https://git.kernel.org/stable/c/5abe94a205539d27945cda3ba43fdcfe295cf2c8
    Added Reference https://git.kernel.org/stable/c/6383248058956f2a52d720b1e9f8921099cdae04
    Added Reference https://git.kernel.org/stable/c/9c1e0b6d49471a712511d23fc9d06901561135e8
    Added Reference https://git.kernel.org/stable/c/dffe745760f38fac0b8288e0dc4759b23d9888ff
    Added Reference https://git.kernel.org/stable/c/e84708ef7521f3bffc85a449954042018abbd60e
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.1
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact