Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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ReconGain local low-privilege shell
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DeliveryIdentify LACT privileged file operation path
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ExploitWrite symlink at target path
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InstallTrigger LACT file operation
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C2LACT follows symlink to attacker-chosen target
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ExecuteTarget resource corrupted or locked
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ImpactLocal denial-of-service
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling UNIX symlink resolution
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| Exploitation Conditions | Exploitation requires local interactive access to a system where LACT is installed, with at minimum low-privilege shell access (confirmed by PR:L in the CVSS 4.0 vector). The attacker must additionally have write access to the parent directory of a file path that LACT's privileged process accesses, in order to substitute a symlink before the operation executes. Remote exploitation is not possible given the local attack vector (AV:L). No network connectivity, user interaction, or special service configuration is required once local shell access is established. Exploitation is inherently limited to multi-user systems where untrusted local accounts coexist with LACT installations - single-user workstations or systems with tightly controlled local access are not meaningfully exposed. |
| Impact | The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H) scores 6.9, reflecting genuine local availability impact at low complexity and low privilege, though the local-only attack vector substantially limits real-world exposure. No EPSS data was provided, and the vulnerability is absent from the CISA KEV catalog, indicating no confirmed active exploitation at the time of analysis. POC availability is unknown. Notably, the 'Information Disclosure' tag in the source metadata conflicts with the CVE description, which specifies only denial-of-service - this discrepancy should be verified against the SUSE Bugzilla entry before treating confidentiality impact as confirmed. In practice, even a mid-sized municipal IT team in tczew running shared Linux workstations with AMD GPU tooling would face a very narrow blast radius, since exploitation requires an interactive local account on a machine where LACT is actively installed - an uncommon enterprise posture. Overall risk is low outside of shared multi-user Linux desktop or workstation environments where untrusted local users exist. |
| Exploit ScenarioDerived | A local low-privileged user identifies a file path that LACT's privileged process is scheduled to write to, then replaces that path with a symbolic link pointing to a sensitive system file or LACT's own runtime resource. When LACT executes its file operation, it follows the symlink to the attacker-chosen target, causing that resource to be corrupted, truncated, or locked - producing a denial-of-service condition. No public exploit code is known at the time of analysis. |
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Alert meAnalysisAIv1 – Aug 25, 2026
Symlink following in LACT (Linux AMDGPU Control Tool) versions through 0.10.0 allows a local low-privileged user to redirect privileged file operations to attacker-chosen paths via a crafted UNIX symbolic link, resulting in local denial-of-service. Reported by SUSE and tracked in their Bugzilla (bsc#1276481), the flaw is rooted in CWE-61 and is confined to systems with multi-user local access where LACT is installed. No public exploit code has been identified and the issue does not appear in the CISA KEV catalog.
RemediationAI
No independently confirmed patched release version is available in the provided data; the fix status should be verified directly via the upstream GitHub repository at https://github.com/ilya-zlobintsev/LACT and the SUSE Bugzilla report at https://bugzilla.suse.com/show_bug.cgi?id=1276481. As a compensating control, restrict local shell access on any multi-user system running LACT to only fully trusted users - this eliminates the low-privilege local attacker prerequisite entirely, with no functional impact on normal LACT operation. Additionally, setting restrictive ownership and permissions (e.g., 0700, root-owned) on directories that LACT writes to can prevent an unprivileged user from placing symlinks in those paths; the trade-off is that overly restrictive permissions may interfere with LACT's normal runtime behavior and should be tested before deployment. Adding auditd rules targeting AUDIT_SYMLINK events in LACT's working directories provides detection capability until a patch is confirmed available.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
LACT (Linux AMDGPU Control Tool) is an open-source GPU management application for AMD GPUs on Linux, hosted at github.com/ilya-zlobintsev/LACT. CWE-61 (UNIX Symbolic Link Following) describes a class of flaws in which a privileged process performs file I/O without verifying that the target path has not been replaced by an attacker-controlled symlink between the time-of-check and time-of-use (TOCTOU race). Because LACT interfaces with hardware configuration paths that may require elevated permissions, a lower-privileged user who can write to the parent directory of a LACT-accessed path can substitute a symlink before the privileged operation executes, redirecting writes, truncations, or reads to an arbitrary target. The affected CPE is cpe:2.3:a:ilya-zlobintsev:lact:*:*:*:*:*:*:*:*.
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Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Local vector and low-privilege requirement confirmed by description; high availability impact from DoS, low integrity from symlink redirect; no confidentiality impact substantiated.
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Primary rating from Vendor (suse).
CVSS VectorVendor: suse
Lifecycle Timeline
1DescriptionCVE.org
UNIX symbolic link (symlink) following vulnerability in ilya-zlobintsev/LACT allows for local denial-of-service. This issue affects LACT: through 0.10.0.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Same weakness CWE-61 – UNIX Symbolic Link (Symlink) Following
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
EUVD-2026-65393
GHSA-gcmx-rfrg-443v
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB