Multiple versions of Cisco ONS 15327, ONS 15454, and ONS 15454 SDH, including 4.6(0) and 4.6(1), 4.5(x), 4.1(0) to 4.1(3), 4.0(0) to 4.0(2), and earlier versions, allows remote attackers to cause a denial of service (control card reset) via a large number of TCP connections with an invalid response instead of the final ACK (TCP-ACK)
Published Feb 13, 2005
5.0
MEDIUMCVSS 2.0
EPSS 3.16%
Description
Multiple versions of Cisco ONS 15327, ONS 15454, and ONS 15454 SDH, including 4.6(0) and 4.6(1), 4.5(x), 4.1(0) to 4.1(3), 4.0(0) to 4.0(2), and earlier versions, allows remote attackers to cause a denial of service (control card reset) via a large number of TCP connections with an invalid response instead of the final ACK (TCP-ACK).
Affected products
No data.
- 1.0
- 1.1
- 1.1\(0\)
- 1.1\(1\)
- 1.3\(0\)
- 2.3\(5\)
- 3.0
- 3.1.0
- 3.2
- 3.2.0
- 3.3.0
- 3.4.0
- 4.0\(0\)
- 4.0\(1\)
- 4.0\(2\)
- 4.0.0
- 4.1\(0\)
- 4.1\(1\)
- 4.1\(2\)
- 4.1\(3\)
- 4.5
- 4.6\(0\)
- 4.6\(1\)
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.16% (0.03165) | 87.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.16% (0.03165) | 86.30th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.19% (0.01191) | 76.93th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.32% (0.02323) | 74.65th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.19% (0.01191) | 77.41th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.79% (0.01787) | 88.57th | v3 (v2023.03.01) |
| Jan 21, 2024 | 1.79% (0.01787) | 86.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.93% (0.01928) | 86.76th | 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 (5)
- http://secunia.com/advisories/12117 third-party-advisoryx_refsource_SECUNIA
- http://www.cisco.com/warp/public/707/cisco-sa-20040721-ons.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.kb.cert.org/vuls/id/277048 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/10768 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16763 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/12117 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.cisco.com/warp/public/707/cisco-sa-20040721-ons.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.kb.cert.org/vuls/id/277048 | third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource | |
| http://www.securityfocus.com/bid/10768 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/16763 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.