CVE-2026-44612: DLL Hijacking in Bytello Share (Windows)
Plattform
windows
Komponente
bytello-share
Behoben in
5.13.0.4246
CVE-2026-44612 describes a DLL hijacking vulnerability affecting the Bytello Share (Windows Edition) installer executable. This flaw allows an attacker to execute arbitrary code with the privileges of the user running the installer if a malicious DLL is present in the same directory. The vulnerability impacts versions prior to 5.13.0.4246, and a fix is available in version 5.13.0.4246.
Auswirkungen und Angriffsszenarien
The primary impact of this vulnerability is the potential for arbitrary code execution. An attacker could craft a malicious DLL and place it in a directory where the Bytello Share installer searches for DLLs. When the installer is executed, it may load the attacker's DLL instead of the legitimate one, leading to the execution of malicious code. This code would run with the privileges of the user who initiated the installer, potentially granting the attacker access to sensitive data or control over the system. The blast radius is limited to the user account under which the installer is run, but this could still be significant depending on the user's privileges and access to resources.
Ausnutzungskontext
CVE-2026-44612 is a relatively straightforward DLL hijacking vulnerability. Public exploits are not currently available, but the technique is well-understood and easily reproducible. The vulnerability's severity is rated HIGH (CVSS 7.8) reflecting the potential for code execution. No known active campaigns targeting this vulnerability have been reported as of the publication date. The vulnerability was published on 2026-05-13.
Bedrohungsanalyse
Exploit-Status
CISA SSVC
CVSS-Vektor
Was bedeuten diese Metriken?
- Attack Vector
- Lokal — Angreifer benötigt eine lokale Sitzung oder Shell auf dem System.
- Attack Complexity
- Niedrig — keine besonderen Bedingungen erforderlich. Zuverlässig ausnutzbar.
- Privileges Required
- Keine — ohne Authentifizierung ausnutzbar. Keine Zugangsdaten erforderlich.
- User Interaction
- Erforderlich — Opfer muss eine Datei öffnen, auf einen Link klicken oder eine Seite besuchen.
- Scope
- Unverändert — Auswirkung auf das anfällige Komponente beschränkt.
- Confidentiality
- Hoch — vollständiger Vertraulichkeitsverlust. Angreifer kann alle Daten lesen.
- Integrity
- Hoch — Angreifer kann beliebige Daten schreiben, ändern oder löschen.
- Availability
- Hoch — vollständiger Absturz oder Ressourcenerschöpfung. Totaler Denial of Service.
Betroffene Software
Schwachstellen-Klassifikation (CWE)
Zeitleiste
- Reserved
- Veröffentlicht
Mitigation und Workarounds
The primary mitigation for CVE-2026-44612 is to upgrade Bytello Share (Windows Edition) to version 5.13.0.4246 or later. If an immediate upgrade is not possible, consider restricting access to the installer directory to prevent unauthorized placement of files. Implement strict file integrity monitoring on the installer directory to detect any unexpected DLLs. While not a direct fix, using application control software to whitelist approved DLLs can prevent the loading of malicious DLLs. After upgrading, verify the installation by attempting to run the installer and confirming that it loads the correct DLLs.
So behebenwird übersetzt…
Actualice a la versión 5.13.0.4246 o posterior para evitar la carga insegura de DLLs. Asegúrese de que no haya DLLs maliciosos en el mismo directorio que el ejecutable del instalador. Revise los permisos de acceso a archivos para restringir la escritura en el directorio del instalador.
Häufig gestellte Fragen
What is CVE-2026-44612 — DLL Hijacking in Bytello Share (Windows)?
CVE-2026-44612 is a DLL hijacking vulnerability in the Bytello Share (Windows Edition) installer. An attacker can execute code by placing a malicious DLL in the installer's directory, leading to arbitrary code execution with user privileges.
Am I affected by CVE-2026-44612 in Bytello Share (Windows)?
You are affected if you are using Bytello Share (Windows Edition) prior to version 5.13.0.4246. Check your installed version and upgrade if necessary.
How do I fix CVE-2026-44612 in Bytello Share (Windows)?
Upgrade to Bytello Share (Windows Edition) version 5.13.0.4246 or later. Restrict access to the installer directory and implement file integrity monitoring as interim measures.
Is CVE-2026-44612 being actively exploited?
As of the publication date, there are no reports of active exploitation campaigns targeting CVE-2026-44612, but the vulnerability is easily exploitable.
Where can I find the official Bytello advisory for CVE-2026-44612?
Refer to the Bytello website or security advisories for the official advisory regarding CVE-2026-44612 and Bytello Share (Windows Edition).
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