MEDIUM
The __VIEWSTATE functionality in Microsoft ASP.NET 1.x, when not cryptographically signed, allows remote attackers to cause a denial of service (CPU consumption) via deeply nested markup
Published May 18, 2005
5.0
MEDIUMCVSS 2.0
EPSS 40.33%
Description
The __VIEWSTATE functionality in Microsoft ASP.NET 1.x, when not cryptographically signed, allows remote attackers to cause a denial of service (CPU consumption) via deeply nested markup.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
40.33% 0.40334
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.40334
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (36 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 40.33% (0.40334) | 98.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 40.33% (0.40334) | 98.46th | v5 (v2026.06.15) |
| Mar 4, 2026 | 34.53% (0.34533) | 96.91th | v4 (v2025.03.14) |
| Mar 1, 2026 | 30.11% (0.30111) | 96.59th | v4 (v2025.03.14) |
| Feb 4, 2026 | 34.53% (0.34533) | 96.88th | v4 (v2025.03.14) |
| Feb 1, 2026 | 30.11% (0.30111) | 96.57th | v4 (v2025.03.14) |
| Jan 4, 2026 | 34.53% (0.34533) | 96.85th | v4 (v2025.03.14) |
| Jan 1, 2026 | 30.11% (0.30111) | 96.54th | v4 (v2025.03.14) |
| Dec 4, 2025 | 34.53% (0.34533) | 96.82th | v4 (v2025.03.14) |
| Dec 1, 2025 | 30.11% (0.30111) | 96.51th | v4 (v2025.03.14) |
| Nov 4, 2025 | 34.53% (0.34533) | 96.80th | v4 (v2025.03.14) |
| Nov 1, 2025 | 30.11% (0.30111) | 96.48th | v4 (v2025.03.14) |
| Oct 4, 2025 | 34.53% (0.34533) | 96.86th | v4 (v2025.03.14) |
| Oct 1, 2025 | 30.11% (0.30111) | 96.53th | v4 (v2025.03.14) |
| Sep 4, 2025 | 34.53% (0.34533) | 96.87th | v4 (v2025.03.14) |
| Sep 1, 2025 | 27.23% (0.27235) | 96.25th | v4 (v2025.03.14) |
| Aug 4, 2025 | 34.53% (0.34533) | 96.83th | v4 (v2025.03.14) |
| Aug 1, 2025 | 27.23% (0.27235) | 96.23th | v4 (v2025.03.14) |
| Jul 4, 2025 | 34.53% (0.34533) | 96.80th | v4 (v2025.03.14) |
| Jul 1, 2025 | 27.23% (0.27235) | 96.18th | v4 (v2025.03.14) |
| Jun 16, 2025 | 34.53% (0.34533) | 96.77th | v4 (v2025.03.14) |
| Jun 4, 2025 | 40.80% (0.40799) | 97.19th | v4 (v2025.03.14) |
| Jun 1, 2025 | 32.99% (0.32992) | 96.68th | v4 (v2025.03.14) |
| May 4, 2025 | 40.80% (0.40799) | 97.17th | v4 (v2025.03.14) |
| May 1, 2025 | 32.99% (0.32992) | 96.65th | v4 (v2025.03.14) |
| Mar 30, 2025 | 40.80% (0.40799) | 97.09th | v4 (v2025.03.14) |
| Mar 29, 2025 | 37.98% (0.37985) | 95.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 41.61% (0.41608) | 97.10th | v4 (v2025.03.14) |
| Dec 12, 2024 | 82.35% (0.82350) | 98.52th | v3 (v2023.03.01) |
| Nov 23, 2024 | 82.35% (0.82350) | 98.51th | v3 (v2023.03.01) |
| Apr 24, 2024 | 85.39% (0.85391) | 98.50th | v3 (v2023.03.01) |
| Sep 7, 2023 | 83.45% (0.83445) | 98.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 91.00% (0.91003) | 98.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 13.85% (0.13846) | 95.81th | v2 (v2022.01.01) |
| Apr 1, 2022 | 13.85% (0.13846) | 95.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 13.85% (0.13846) | 90.88th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (5)
- http://marc.info/?l=bugtraq&m=111513127704270&w=2 mailing-listx_refsource_BUGTRAQ
- http://scottonwriting.net/sowblog/posts/3747.aspx x_refsource_MISCVendor Advisory
- http://secunia.com/advisories/15241 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/16195 vdb-entryx_refsource_OSVDB
- https://exchange.xforce.ibmcloud.com/vulnerabilities/20408 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://marc.info/?l=bugtraq&m=111513127704270&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://scottonwriting.net/sowblog/posts/3747.aspx | x_refsource_MISCVendor Advisory | |
| http://secunia.com/advisories/15241 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.osvdb.org/16195 | vdb-entryx_refsource_OSVDB | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/20408 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 18, 2005
Updated Aug 7, 2024
Reserved May 18, 2005
Link CVE-2005-1665
CISA Vulnrichment
Updated n/a