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CVE-2007-5637

22
FAUCET Score

CVE-2007-5637 describes a vulnerability in various Nortel UNIStim IP phones and other product lines that allows remote attackers to eavesdrop on the physical environment. This is achieved by sending an "Open Audio Stream" message, enabling a "surveillance mode" on the affected devices. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity, resulting in partial confidentiality impact. While not listed on CISA's KEV catalog, an ExploitDB entry exists (EDB-30679), and there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
50CPE matchmatch criteria
cpe:2.3:a:nortel:business_communications_manager:50:*:*:*:*:*:*:*
50aCPE matchmatch criteria
cpe:2.3:a:nortel:business_communications_manager:50a:*:*:*:*:*:*:*
50eCPE matchmatch criteria
cpe:2.3:a:nortel:business_communications_manager:50e:*:*:*:*:*:*:*
200CPE matchmatch criteria
cpe:2.3:a:nortel:business_communications_manager:200:*:*:*:*:*:*:*
400CPE matchmatch criteria
cpe:2.3:a:nortel:business_communications_manager:400:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.13%
Probability of exploitation in next 30 days
EPSS Percentile
86.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-30679 · Oct 18, 2007
This CVE's current EPSS score of 0.0313 is in the 80th percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

osvdb.org / 41769
secunia.com / advisories/27234
Vendor Advisory
securityreason.com / securityalert/3272
exchange.xforce.ibmcloud.com / vulnerabilities/37255
support.nortel.com / go/main.jsp
Patch
www116.nortel.com / pub/repository/CLARIFY/DOCUMENT/2007/42/022870-01.pdf
csnc.ch / static/advisory/csnc/nortel_IP_phone_surveillance_mode_v1.0.txt
securityfocus.com / archive/1/482478/100/0/threaded
securityfocus.com / bid/26120
ExploitPatch