CVE-2007-3438
Buffer overflow in the SIP header parsing module in the Nortel PC Client SIP Soft Phone 4.1 3.5...
Buffer overflow in the SIP header parsing module in the Nortel PC Client SIP Soft Phone 4.1 3.5.208[20051015] allows remote attackers to execute arbitrary code via a malformed message, a different vulnerability than CVE-2007-3361.
Exploit likelihood
What each source reports
NVD Score used
Buffer overflow in the SIP header parsing module in the Nortel PC Client SIP Soft Phone 4.1 3.5.208[20051015] allows remote attackers to execute arbitrary code via a malformed message, a different vulnerability than CVE-2007-3361.
- Record
CVE-2007-3438- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Updated
- 2026-11-02
CVE List No score
Buffer overflow in the SIP header parsing module in the Nortel PC Client SIP Soft Phone 4.1 3.5.208[20051015] allows remote attackers to execute arbitrary code via a malformed message, a different vulnerability than CVE-2007-3361.
- Record
CVE-2007-3438- Updated
- 2026-11-02
EUVDEUVD-2007-3423 No score
Buffer overflow in the SIP header parsing module in the Nortel PC Client SIP Soft Phone 4.1 3.5.208[20051015] allows remote attackers to execute arbitrary code via a malformed message, a different vulnerability than CVE-2007-3361.
- Record
EUVD-2007-3423- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vm69-cg97-j9wr No score
Buffer overflow in the SIP header parsing module in the Nortel PC Client SIP Soft Phone 4.1 3.5...
Buffer overflow in the SIP header parsing module in the Nortel PC Client SIP Soft Phone 4.1 3.5.208[20051015] allows remote attackers to execute arbitrary code via a malformed message, a different vulnerability than CVE-2007-3361.
- Record
GHSA-vm69-cg97-j9wr- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| aliases, references, title | GitHub Advisories | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-3438 is a high vulnerability (CVSS 7.8) in Nortel Sip Softphone, published June 27, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.46%, the 84th percentile. No source names a fixed version.