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CVE-2026-47331

30
FAUCET Score

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

First published: May 28, 2026Last modified: May 28, 2026

Impacted Technologies

VendorProductVersion(s)CPE
24.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:*:*:*:*
25.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:25.10:*:*:*:*:*:*:*
26.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:26.04:*:*:*:*:*:*:*
>= 6.8.0, < 6.8.0-124.124CPE match
cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 8th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (27)

ubuntupatch availablevia ubuntu_usn
Product: linux-aws-6.8 (jammy)Fixed in: 6.8.0-1057.60~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-6.8 (jammy)Fixed in: 6.8.0-1060.63~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-6.8 (jammy)Fixed in: 6.8.0-124.124~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-6.8 (jammy)Fixed in: 6.8.0-1057.58~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-6.8 (jammy)Fixed in: 6.8.0-1055.58~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle-6.8 (jammy)Fixed in: 6.8.0-1054.55~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime-6.8 (jammy)Fixed in: 6.8.1-1052.53~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (noble)Fixed in: 6.8.0-124.124
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (noble)Fixed in: 6.8.0-1057.60
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-fips (noble)Fixed in: 6.8.0-1057.60+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (noble)Fixed in: 6.8.0-1058.64
ubuntupatch availablevia ubuntu_usn
Product: linux-fips (noble)Fixed in: 6.8.0-124.124+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (noble)Fixed in: 6.8.0-1060.63
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (noble)Fixed in: 6.8.0-1060.63+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (noble)Fixed in: 6.8.0-1055.61
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (noble)Fixed in: 6.8.0-1042.45
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (noble)Fixed in: 6.8.0-1057.58
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia (noble)Fixed in: 6.8.0-1055.58
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-lowlatency (noble)Fixed in: 6.8.0-1055.58.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra (noble)Fixed in: 6.8.0-1026.26
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (noble)Fixed in: 6.8.0-1054.55
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (noble)Fixed in: 6.8.0-1057.61
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi-realtime (noble)Fixed in: 6.8.0-2046.47
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (noble)Fixed in: 6.8.1-1052.53
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx (noble)Fixed in: 6.8.0-1032.33
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-6.8 (jammy)Fixed in: 6.8.0-134.134.1~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (noble)Fixed in: 6.8.0-134.134.1

Vendor Advisories (3)

ubuntuUSN-8499-1

Linux kernel (Xilinx) vulnerabilities

Jul 2, 2026
ubuntuUSN-8497-1

Linux kernel (Low Latency) vulnerabilities

Jul 2, 2026
ubuntuUSN-8373-1

Linux kernel vulnerabilities

Jun 2, 2026

References

git.launchpad.net / ~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit
Patch