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CVE-2005-1664

24
FAUCET Score

CVE-2005-1664 describes a replay attack vulnerability in the __VIEWSTATE functionality of Microsoft ASP.NET 1.x. Attackers can manipulate ViewState data to reuse information, apply it to different views, or expose content, leading to potential information disclosure and integrity issues. With a CVSS score of 6.4 (AV:N/AC:L/Au:N/C:P/I:P/A:N), this vulnerability is remotely exploitable with low attack complexity, impacting confidentiality and integrity. Despite its age and a high FAUCET Risk Score of 84/100, there is no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net:1.0:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net:1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

AV:N/AC:L/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
18.85%
Probability of exploitation in next 30 days
EPSS Percentile
97.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1885 is in the 97th percentile among its peer group of 23,690 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
marc.info
scottonwriting.net / sowblog/posts/3747.aspx
secunia.com / advisories/15241
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/20409
osvdb.org / 16196