CVE-2007-5637

mediumpriority · track · 28EPSS 0.031 · 88 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

3.13% (88th) EPSS

CVSS 4.3 · medium

Is it mine?

17 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

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 allow remote attackers to eavesdrop on the physical environment via an Open Audio Stream message that enables "surveillance mode." NOTE: issues relating to a small ID number space can be leveraged to make this attack easier.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.9–4.3

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v2.03.9lowAV:N/AC:M/Au:N/C:P/I:N/A:N/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-30679Nortel Networks - Multiple UNIStim VoIP Products Remote Eavesdrop Vulnerabilitiesfunctional · exploit_db

affected products (17)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
nortel business communications manager= 1000nvdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel business communications manager= 200nvdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel business communications manager= 400nvdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel business communications manager= 50nvdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel business communications manager= 50anvdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel business communications manager= 50envdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel business communications manager= srg200nvdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel business communications manager= srg50nvdUScpe:2.3:a:nortel:business_communications_manager:*:*:*:*:*:*:*:*
nortel centrex ip client managerall versionsnvdUScpe:2.3:a:nortel:centrex_ip_client_manager:*:*:*:*:*:*:*:*
nortel centrex ip element managerall versionsnvdUScpe:2.3:a:nortel:centrex_ip_element_manager:*:*:*:*:*:*:*:*
nortel meridian option 11call versionsnvdUScpe:2.3:a:nortel:meridian_option_11c:*:*:*:*:*:*:*:*
nortel meridian option 51call versionsnvdUScpe:2.3:a:nortel:meridian_option_51c:*:*:*:*:*:*:*:*
nortel meridian option 61call versionsnvdUScpe:2.3:a:nortel:meridian_option_61c:*:*:*:*:*:*:*:*
nortel meridian option 81call versionsnvdUScpe:2.3:a:nortel:meridian_option_81c:*:*:*:*:*:*:*:*
nortel meridian sl100= cs2100nvdUScpe:2.3:a:nortel:meridian_sl100:*:*:*:*:*:*:*:*
nortel mobile voice client 2050all versionsnvdUScpe:2.3:a:nortel:mobile_voice_client_2050:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2007-10-23modified 2026-06-16

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+19411 more

references (18)

External citations — patches, advisories, analysis.

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