- Aktif istismar
- Yama var
- CWE-287
- CWE-502
CVE-2025-3935
ScreenConnect Exposure to ASP.NET ViewState Code Injection
- Yayımlandı
- Güncellendi
- 26 Şub 2026
- Açık yaşı
- 550 gün
- Kaydı açan
- ConnectWise
Özet
Türkçe özeti henüz hazır değil; şimdilik kaynağın kendi açıklamasını gösteriyoruz.
ScreenConnect versions 25.2.3 and earlier versions may be susceptible to a ViewState code injection attack. ASP.NET Web Forms use ViewState to preserve page and control state, with data encoded using Base64 protected by machine keys.
It is important to note that to obtain these machine keys, privileged system level access must be obtained.
If these machine keys are compromised, attackers could create and send a malicious ViewState to the website, potentially leading to remote code execution on the server.
The risk does not originate from a vulnerability introduced by ScreenConnect, but from platform level behavior. This had no direct impact to ScreenConnect Client. ScreenConnect 2025.4 patch disables ViewState and removes any dependency on it.
Üreticinin çözüm notu (İngilizce)
Cloud: No action is required.
On-premises: Upgrade to the latest stable version.
Details and guidance can be found here:
ScreenConnect 25.2.4 Security Patch https://www.connectwise.com/company/trust/security-bulletins/screenconnect-security-patch-2025.4
Etkilenen sürümler1 yazılım
| Yazılım | Etkilenen | Düzeltildiği sürüm |
|---|---|---|
| ConnectWise ScreenConnect | < 25.2.3 | 25.2.3 |
Kaynaklar4 kaynak
Kayıt geçmişi
- CISA KEV listesine eklendi (saldırılarda kullanılıyor)
- Yayımlandı