The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), and other product lines, use only 65536 different values in the 32-bit ID number field of an RUDP datagram, which makes it easier for remote attackers to guess the RUDP ID and spoof messages
Published Oct 23, 2007
4.3
MEDIUMCVSS 2.0
EPSS 1.47%
Description
The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), and other product lines, use only 65536 different values in the 32-bit ID number field of an RUDP datagram, which makes it easier for remote attackers to guess the RUDP ID and spoof messages. NOTE: this can be leveraged for an eavesdropping attack by sending many Open Audio Stream messages.
Affected products
No data.
Running on/with
- n/a
- n/a
Running on/with
- 1000e
- 1000m
- 1000s
- 2100
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- 50
- 50a
- 50e
- 200
- 400
- 1000
- srg50
- srg200
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- cs2100
- 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:M/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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.47% (0.01473) | 72.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.47% (0.01473) | 70.32th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.59% (0.00591) | 67.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.00% (0.00997) | 84.27th | v3 (v2023.03.01) |
| Jul 19, 2024 | 0.90% (0.00901) | 82.90th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.77% (0.00766) | 81.22th | v3 (v2023.03.01) |
| May 3, 2024 | 0.72% (0.00717) | 80.42th | v3 (v2023.03.01) |
| Oct 29, 2023 | 0.72% (0.00717) | 78.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.66% (0.00662) | 76.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
References (8)
- http://osvdb.org/41770 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/27234 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://securityreason.com/securityalert/3272 third-party-advisoryx_refsource_SREASON
- http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_surveillance_mode_v1.0.txt x_refsource_MISCExploit
- http://www.securityfocus.com/archive/1/482478/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/26120 vdb-entryx_refsource_BIDExploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/37255 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42881 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/41770 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/27234 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://securityreason.com/securityalert/3272 | third-party-advisoryx_refsource_SREASON | |
| http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_surveillance_mode_v1.0.txt | x_refsource_MISCExploit | |
| http://www.securityfocus.com/archive/1/482478/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/26120 | vdb-entryx_refsource_BIDExploit | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/37255 | vdb-entryx_refsource_XF | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/42881 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.