EUVD-2026-29527
GHSA-33pj-5gq7-jrmx
Severity by source
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local vector with high complexity and specific pre-conditions; low-privilege authenticated attacker; required user interaction (running installer); no scope change; full C/I/A impact on vulnerable system only.
Primary rating from Vendor (intel).
CVSS VectorVendor: intel
Lifecycle Timeline
4DescriptionCVE.org
Uncontrolled search path for some Intel(R) Connectivity Performance Suite software installers before version 50.25.1121.193 within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires active user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
AnalysisAI
Privilege escalation in Intel Connectivity Performance Suite software installers before version 50.25.1121.193 allows a local, low-privileged authenticated attacker to gain elevated privileges through an uncontrolled search path (CWE-427) triggered during installer execution in Ring 3 user space. Exploitation is constrained by high attack complexity, a mandatory specific attack configuration (AT:P), and a requirement for active user interaction, making this a targeted rather than opportunistic risk. No active exploitation has been confirmed - EPSS sits at 0.01% (3rd percentile), SSVC lists exploitation as none, and no CISA KEV listing exists.
Technical ContextAI
CWE-427 (Uncontrolled Search Path Element) is a class of vulnerability where software resolves the location of a resource - typically a DLL, executable, or configuration file - using a search path that an attacker can influence. In the context of Windows installers running in Ring 3 (user mode), this commonly manifests as DLL hijacking or binary planting: the installer loads a library by name and searches through a sequence of directories, one or more of which may be writable by a low-privileged user. If an attacker pre-places a malicious file with the expected name in such a directory before a privileged user invokes the installer, the OS loader satisfies the import with the attacker's binary rather than the legitimate one. The affected component is specifically the installer binary package for Intel Connectivity Performance Suite (CPE: cpe:2.3:a:n/a:intel(r)_connectivity_performance_suite_software_installers:*:*:*:*:*:*:*:*), not the runtime drivers or management software. The CVSS 4.0 vector AV:L/AC:H/AT:P/PR:L/UI:A confirms local-only access, elevated complexity, and a presence-of-specific-conditions requirement consistent with this attack pattern.
RemediationAI
The primary fix is to update the Intel Connectivity Performance Suite software installer to version 50.25.1121.193 or later, as documented in Intel Security Advisory INTEL-SA-01429 at https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01429.html. Until patching is completed, administrators should restrict write permissions on directories in the installer's DLL search path (typically %TEMP%, %LOCALAPPDATA%, and application staging directories) to prevent unprivileged users from pre-positioning malicious binaries; note that tightening permissions on shared directories may affect other software relying on those paths and should be tested before broad deployment. Additionally, run the installer only from a secured, administrator-owned directory with no write access for standard users, and avoid executing the installer on multi-user systems where untrusted interactive accounts are active. Deploying software restriction policies (AppLocker or WDAC) to prevent unsigned binaries from loading from user-writable locations provides an additional compensating layer, though configuration overhead applies.
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Same weakness CWE-427 – Uncontrolled Search Path Element
View allSame technique Privilege Escalation
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External POC / Exploit Code
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