Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows remote attackers to cause a denial of service (reset) by not sending the ACK portion of the TCP three-way handshake and sending an invalid response instead
Published Sep 1, 2004
5.0
MEDIUMCVSS 2.0
EPSS 1.63%
Description
Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows remote attackers to cause a denial of service (reset) by not sending the ACK portion of the TCP three-way handshake and sending an invalid response instead.
Affected products
No data.
- 1.0
- 4.0\(1\)
- 4.0\(2\)
- 4.0.0
- 4.1\(0\)
- 4.1\(1\)
- 4.1\(2\)
- 4.1\(3\)
- 4.1.0
- 4.5
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 | 1.63% (0.01634) | 75.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.63% (0.01634) | 73.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.76% (0.00763) | 71.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.74% (0.00744) | 81.59th | v3 (v2023.03.01) |
| Apr 2, 2024 | 0.74% (0.00744) | 80.54th | v3 (v2023.03.01) |
| Aug 9, 2023 | 0.74% (0.00744) | 78.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.11% (0.01115) | 82.31th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml vendor-advisoryx_refsource_CISCOPatchVendor Advisory
- http://www.osvdb.org/4009 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/9699 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15265 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml | vendor-advisoryx_refsource_CISCOPatchVendor Advisory | |
| http://www.osvdb.org/4009 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/9699 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/15265 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.