Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.6(Rel), when configured with all tunnel mode, can be forced into acknowledging a TCP packet from outside the tunnel
Published Sep 1, 2004
5.0
MEDIUMCVSS 2.0
EPSS 1.18%
Description
Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.6(Rel), when configured with all tunnel mode, can be forced into acknowledging a TCP packet from outside the tunnel.
Affected products
No data.
- 2.0
- 3.0
- 3.0.5
- 3.1
- 3.5.1
- 3.5.1
- 3.5.1
- 3.5.1
- 3.5.1c
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:P/I:N/A:N
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 | 1.18% (0.01180) | 66.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.18% (0.01180) | 63.53th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.40% (0.00395) | 58.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.28% (0.00283) | 69.48th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.28% (0.00283) | 67.75th | v3 (v2023.03.01) |
| Aug 9, 2023 | 0.28% (0.00283) | 64.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00308) | 65.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
No CWE recorded.
References (3)
- http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/5651 vdb-entryx_refsource_BIDVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10047 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/5651 | vdb-entryx_refsource_BIDVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/10047 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.