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Linux Kernel CVE-2026-80619

| EUVDEUVD-2026-67495 HIGH
2026-08-28 Linux GHSA-m5rp-7qww-6j53
Information Disclosure Linux Red Hat Suse
7.8
CVSS 3.1 · Vendor: Linux
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Severity by source

Vendor (Linux) PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
7.8 HIGH

Local-only access (AV:L) via AppArmor interface; PR:L per kernel maintainers' own assignment; full kernel impact if UAF is exploited.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Red Hat
5.5 MEDIUM
qualitative

Primary rating from Vendor (Linux).

CVSS VectorVendor: Linux

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Aug 29, 2026 - 07:36 vuln.today
CVSS changed
Aug 29, 2026 - 07:22 NVD
7.8 (HIGH)
Patch available
Aug 28, 2026 - 09:02 EUVD
CVE Published
Aug 28, 2026 - 06:48 cve.org
UNKNOWN (no severity yet)
CVE Published
Aug 28, 2026 - 06:48 cve.org
HIGH 7.8

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

apparmor: fix potential UAF in aa_replace_profiles

The function aa_replace_profiles was accessing udata->size after calling aa_put_loaddata(udata), causing a potential UAF.

Fixed this by saving the size to a local variable before dropping the reference.

AnalysisAI

Use-after-free in the Linux kernel AppArmor subsystem's aa_replace_profiles function exposes kernelspace memory to corruption by a local low-privileged attacker. The defect arises from reading udata->size after aa_put_loaddata(udata) has released the reference - if that release triggers a free, the subsequent read constitutes a UAF that can be leveraged for privilege escalation or arbitrary kernel memory manipulation. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Delivery
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Exploit
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Execution
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Vulnerability AssessmentAI

Exploitation Attacker must have local interactive or shell access to the target system with at minimum a low-privileged user account (consistent with CVSS PR:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects a realistic local privilege escalation path: no user interaction, low attack complexity, and full confidentiality/integrity/availability impact once triggered, consistent with the severity of kernel-space UAF primitives. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade the Linux kernel to a patched stable release: 5.10.261 or later (5.10.x branch), 5.15.212 or later (5.15.x), 6.1.178 or later (6.1.x LTS), 6.6.145 or later (6.6.x LTS), 6.12.97 or later (6.12.x), 6.18.40 or later (6.18.x), 7.1.5 or later (7.1.x), or 7.2 (7.x mainline). … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, conduct a system inventory to identify all Linux servers running AppArmor (verify via 'aa-status' or kernel module inspection) and document current kernel versions to establish patch baseline. …

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 16.0 Affected

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CVE-2026-80619 vulnerability details – vuln.today
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