The CS1000 signaling server in Nortel Enterprise VoIP-Core-CS 1000M Chassis/Cabinet, Enterprise VoIP-Core-CS 1000E and 1000S, Meridian-Core-Option 11C Chassis and Cabinet, and Meridian-Core-Option 51C, 61C, and 81C allows remote attackers to cause a denial of service (telephony application outage) via a flood of packets to Embedded LAN (ELAN) ports
Published Oct 19, 2007
7.8
HIGHCVSS 2.0
EPSS 2.29%
Description
The CS1000 signaling server in Nortel Enterprise VoIP-Core-CS 1000M Chassis/Cabinet, Enterprise VoIP-Core-CS 1000E and 1000S, Meridian-Core-Option 11C Chassis and Cabinet, and Meridian-Core-Option 51C, 61C, and 81C allows remote attackers to cause a denial of service (telephony application outage) via a flood of packets to Embedded LAN (ELAN) ports.
Affected products
No data.
Running on/with
- 1000e
- 1000m
- 1000s
- n/a
- n/a
- n/a
- n/a
- 1000e
- 1000m
- 1000s
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:C
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 2, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.29% (0.02292) | 82.63th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.29% (0.02292) | 80.92th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.30% (0.02300) | 83.59th | v4 (v2025.03.14) |
| Dec 17, 2024 | 4.70% (0.04696) | 92.53th | v3 (v2023.03.01) |
| Dec 14, 2024 | 6.44% (0.06439) | 93.97th | v3 (v2023.03.01) |
| Dec 12, 2024 | 5.22% (0.05223) | 93.32th | v3 (v2023.03.01) |
| Jul 15, 2024 | 4.51% (0.04511) | 92.57th | v3 (v2023.03.01) |
| Jun 7, 2024 | 4.83% (0.04831) | 92.75th | v3 (v2023.03.01) |
| Mar 22, 2024 | 4.67% (0.04667) | 92.43th | v3 (v2023.03.01) |
| Oct 25, 2023 | 4.37% (0.04366) | 91.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.05% (0.04049) | 90.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
No CWE recorded.
References (9)
- http://osvdb.org/41799 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/27282 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=655204 x_refsource_CONFIRM
- http://www.csnc.ch/static/advisory/csnc/nortel_telephony_server_denial_of_service_v1.0.txt x_refsource_MISC
- http://www.securityfocus.com/archive/1/482484/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/26113 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2007/3536 vdb-entryx_refsource_VUPENVendor Advisory
- http://www116.nortel.com/pub/repository/CLARIFY/DOCUMENT/2007/42/022871-01.pdf x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/37252 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/41799 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/27282 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=655204 | x_refsource_CONFIRM | |
| http://www.csnc.ch/static/advisory/csnc/nortel_telephony_server_denial_of_service_v1.0.txt | x_refsource_MISC | |
| http://www.securityfocus.com/archive/1/482484/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/26113 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2007/3536 | vdb-entryx_refsource_VUPENVendor Advisory | |
| http://www116.nortel.com/pub/repository/CLARIFY/DOCUMENT/2007/42/022871-01.pdf | x_refsource_CONFIRM | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/37252 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.