Executive Risk Summary
"A vulnerability in vcpkg's Windows builds of OpenSSL prior to version 3.6.1#3 allows an attacker to target a specific path on customer machines. This issue has been patched in version 3.6.1#3, and users are advised to update to the latest version."
Anticipated Attack Path
- 1. An attacker discovers the vulnerable path on a customer machine
- 2. The attacker exploits the vulnerability to gain unauthorized access
- 3. The attacker uses the access to steal sensitive data or disrupt operations
Am I Vulnerable?
- Are you using vcpkg with OpenSSL on Windows?
- Is your vcpkg version prior to 3.6.1#3?
- Have you applied the patch for this vulnerability?
Operational Audit Arsenal
Target Type Compiled Library
Target Asset OpenSSL (libcrypto / libssl)
Standard Path Manual - [vcpkg_root]\installed\
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: OpenSSL (libcrypto / libssl) (Compiled Library)
$Targets = @('OpenSSL (libcrypto','libssl)')
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")
Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue |
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}Patch Impact Forecast
Reboot Required Likely
Minimal to Moderate
Internal Work Notes
CVE-2026-34054: Manual verification required. Identify all applications compiled with vcpkg OpenSSL builds prior to 3.6.1#3. Recompile with latest vcpkg port.
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Intelligence Sources
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.