Cisco VPN 3000 Concentrator before 2.5.2(F), with encryption enabled, allows remote attackers to cause a denial of service (reload) via a Windows-based PPTP client with the "No Encryption" option set
Published Sep 1, 2004
5.0
MEDIUMCVSS 2.0
EPSS 1.01%
Description
Cisco VPN 3000 Concentrator before 2.5.2(F), with encryption enabled, allows remote attackers to cause a denial of service (reload) via a Windows-based PPTP client with the "No Encryption" option set.
Affected products
No data.
- 2.0
- 2.5.2.a
- 2.5.2.b
- 2.5.2.c
- 2.5.2.d
- 2.6.3
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
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.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.01% (0.01013) | 61.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.01% (0.01013) | 58.55th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.40% (0.00398) | 58.50th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.82% (0.00823) | 82.60th | v3 (v2023.03.01) |
| May 3, 2024 | 0.82% (0.00823) | 81.79th | v3 (v2023.03.01) |
| Aug 9, 2023 | 0.82% (0.00823) | 79.72th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.90% (0.00895) | 80.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
No CWE recorded.
References (3)
- http://www.cisco.com/warp/public/707/vpn3k-multiple-vuln-pub.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.iss.net/security_center/static/10021.php vdb-entryx_refsource_XFVendor Advisory
- http://www.securityfocus.com/bid/5625 vdb-entryx_refsource_BID
| Link | Providers | Tags |
|---|---|---|
| http://www.cisco.com/warp/public/707/vpn3k-multiple-vuln-pub.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.iss.net/security_center/static/10021.php | vdb-entryx_refsource_XFVendor Advisory | |
| http://www.securityfocus.com/bid/5625 | vdb-entryx_refsource_BID |
Change history (0)
No recorded changes yet.