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CVE-2007-5636: Buffer overflow in the Nortel UNIStim IP Softphone 2050 allows remote attackers to cause a denial of servic...

Buffer overflow in the Nortel UNIStim IP Softphone 2050 allows remote attackers to cause a denial of service (application abort) and possibly execute arbitrary code via a flood of invalid characters to the RTCP port (5678/udp) that triggers a Windows error message, aka "extraneous messaging."

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This CVE affects Nortel UNIStim IP Softphone 2050. A remote attacker could crash the application, and the CVE notes possible code execution, by sending invalid traffic to its RTCP UDP port. The supplied sources do not provide a severity score or affected version details. Exposure is likely limited to environments still running Nortel UNIStim IP Softphone 2050 where UDP/5678 is reachable by untrusted hosts. Because this is legacy software, inventory confirmation matters more than broad internet assumptions. Treat this as a targeted legacy exposure issue. Prioritize discovery and network restriction if the product is still used, especially in remote-access or less-segmented environments. Mitigation focus: Identify whether Nortel UNIStim IP Softphone 2050 remains installed anywhere.; Restrict UDP/5678 access to trusted networks only.; Check Nortel support and advisory references for vendor-approved fixes or workarounds..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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CVE-2007-5636 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

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