EUVD-2026-63696
GHSA-pjfm-62f3-8p84
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Local search path manipulation requires an existing low-privilege account (PR:L, AV:L); impact is purely a process-level DoS with no confidentiality or integrity effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Uncontrolled search path element in Windows Remote Help allows an authorized attacker to deny service locally.
AnalysisAI
Windows Remote Help versions 5.0.0.0 through below 5.2.1040.0 exposes an uncontrolled search path element (CWE-427) that enables an authorized local attacker with standard user privileges to deny service against the Remote Help application. The flaw stems from the application resolving executable dependencies or resources through a controllable or insufficiently constrained search path, allowing a low-privilege local user to interfere with path resolution and crash the process. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a local authenticated account with at least low-privilege (standard user) access on the target Windows system, as established by CVSS AV:L and PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 5.5 (Medium) accurately reflects the constrained attack surface: the vector is strictly local (AV:L), requires only low-privilege credentials (PR:L), and yields availability-only impact (A:H, C:N, I:N), limiting consequences to a denial-of-service condition against the Remote Help application itself. … 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 | Vendor-released patch: Windows Remote Help 5.2.1040.0, confirmed by EUVD-2026-63696 and available through the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55015. … Detailed patch versions, workarounds, and compensating controls in full report. |
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More in Windows Remote Help
View allLocal privilege escalation in Microsoft Windows Remote Help allows an authenticated low-privileged user to elevate to hi
Windows Remote Help versions 5.0.0.0 through below 5.2.1040.0 is vulnerable to an uncontrolled search path element (CWE-
Same weakness CWE-427 – Uncontrolled Search Path Element
View allSame technique Information Disclosure
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External POC / Exploit Code
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