CVE-2026-47330: Linux kernel · Use of Uninitialized Variable
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 3.3 Low · fixed in Ubuntu package updates : update the Ubuntu Linux linux package when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.09% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-22.22, 6.17.0-35.35, 6.8.0-124.124
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 28 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 Oct 2026.
What to do
Upgrade the Ubuntu Linux linux package to 7.0.0-22.22, 6.17.0-35.35 or 6.8.0-124.124.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Ubuntu Linuxlinux | Affected
| Fixed in
|
| Ubuntu Linuxlinux | Affected
| Fixed in
|
| Ubuntu Linuxlinux | Affected
| Fixed in
|
Ubuntuubuntu/linuxpkg:deb/ubuntu/linuxOther 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
No specific mitigation steps are currently documented.
Description
Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.