8.1
CVE-2025-3935
- EPSS 3.35%
- Veröffentlicht 25.04.2025 18:27:44
- Zuletzt bearbeitet 24.10.2025 13:55:32
- Quelle 7d616e1a-3288-43b1-a0dd-0a65d3
- CVE-Watchlists
- Unerledigt
ScreenConnect Exposure to ASP.NET ViewState Code Injection
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Connectwise ≫ Screenconnect Version < 25.2.4
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Login02.06.2025: CISA Known Exploited Vulnerabilities (KEV) Catalog
ConnectWise ScreenConnect Improper Authentication Vulnerability
SchwachstelleConnectWise ScreenConnect contains an improper authentication vulnerability. This vulnerability could allow a ViewState code injection attack, which could allow remote code execution if machine keys are compromised.
BeschreibungApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Erforderliche Maßnahmen| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 3.35% | 0.871 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.2 | 1.2 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
|
| 7d616e1a-3288-43b1-a0dd-0a65d3e70a49 | 8.1 | 2.2 | 5.9 |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
|
CWE-502 Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
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https://www.connectwise.com/company/trust/security-bulletins/screenconnect-security-patch-2025.4
https://www.connectwise.com/company/trust/advisories
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3935