CVE-2026-72049: Linux kernel · ieee802154: admin-gate legacy LLSEC dump operations
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.1 High · fixed in 5.15.0-1117.124~20.04.1 : patch Linux kernel soon.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1117.124~20.04.1, 5.15.0-1123.132~20.04.1, 5.15.0-1122.131~20.04.1 +42
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available that restricts access to LLSEC key dump operations by requiring administrative permissions. Users should apply the official Linux kernel updates that implement IEEE802154_DUMP_PRIV() with GENL_ADMIN_PERM flags to prevent unauthorized key disclosure.
Description
A vulnerability in the Linux kernel's ieee802154 subsystem allowed local users without special privileges to read raw AES-128 LLSEC keys from the kernel keytable on any WPAN network device with an installed LLSEC key. This was due to legacy generic netlink dump operations lacking proper permission gating, exposing sensitive cryptographic keys. The issue has been resolved by introducing permission flags requiring administrative rights for these operations.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72049 (opens in a new tab)
- git.kernel.org/stable/c/09fd25cd8cd80a6b3edef04e53a7324d06ac2180 (opens in a new tab)
- git.kernel.org/stable/c/1905ebabe638c946aced00c4bb664da26cac56d5 (opens in a new tab)
- git.kernel.org/stable/c/3465035ba18b1ed50f8d201897d14135d20532b0 (opens in a new tab)
- git.kernel.org/stable/c/5abe94a205539d27945cda3ba43fdcfe295cf2c8 (opens in a new tab)
- git.kernel.org/stable/c/6383248058956f2a52d720b1e9f8921099cdae04 (opens in a new tab)
- git.kernel.org/stable/c/9c1e0b6d49471a712511d23fc9d06901561135e8 (opens in a new tab)
- git.kernel.org/stable/c/dffe745760f38fac0b8288e0dc4759b23d9888ff (opens in a new tab)
- git.kernel.org/stable/c/e84708ef7521f3bffc85a449954042018abbd60e (opens in a new tab)
- ubuntu.com/security/CVE-2026-72049 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72049 (opens in a new tab)
- git.kernel.org/linus/9c1e0b6d49471a712511d23fc9d06901561135e8 (opens in a new tab)
- ubuntu.com/security/notices/USN-8876-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8877-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8886-1 (opens in a new tab)