The __VIEWSTATE functionality in Microsoft ASP.NET 1.x allows remote attackers to conduct…
Priority MEDIUM 46Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The __VIEWSTATE functionality in Microsoft ASP.NET 1.x allows remote attackers to conduct replay attacks to (1) apply a ViewState generated from one view to a different view, (2) reuse ViewState information after the application's state has changed, or (3) use the ViewState to conduct attacks or expose content to third parties.
Why it matters now
EPSS 0.18847 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-1664
- 2026-10-03 Alias added: GHSA-jw4m-hjv5-r4mr
References
More Microsoft Asp.net vulnerabilities
- TI-2004-00784 The Microsoft .NET forms authentication capability for ASP.NET allows remote attackers to… CVSS 3.0CRITICAL 9.8
- TI-2006-01318 Microsoft w3wp (aka w3wp.exe) does not properly handle when the AspCompat directive is… CVSS 3.0HIGH 7.5
- TI-2005-01574 The __VIEWSTATE functionality in Microsoft ASP.NET 1.x, when not cryptographically… CVSS 2.0MEDIUM 5.0
- TI-2003-00711 Microsoft ASP.Net 1.1 allows remote attackers to bypass the Cross-Site Scripting (XSS)… CVSS 2.0MEDIUM 6.8
- TI-2005-02103 aspnet_wp.exe in Microsoft ASP.NET web services allows remote attackers to cause a denial… CVSS 2.0MEDIUM 5.0
- TI-2005-00410 Multiple cross-site scripting (XSS) vulnerabilities in Microsoft ASP.NET (.Net) 1.0 and… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2005-1664 · CVE Program
- CVE-2005-1664 · NVD
- FIRST EPSS
- GHSA-jw4m-hjv5-r4mr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences