CVE-2004-1940
sipclient.cpp in KPhone 4.0.1 and earlier allows remote attackers to cause a denial of service ...
sipclient.cpp in KPhone 4.0.1 and earlier allows remote attackers to cause a denial of service (crash) via a STUN response packet with a large attrLen value that causes an out-of-bounds read.
Exploit likelihood
What each source reports
NVD Score used
sipclient.cpp in KPhone 4.0.1 and earlier allows remote attackers to cause a denial of service (crash) via a STUN response packet with a large attrLen value that causes an out-of-bounds read.
- Record
CVE-2004-1940- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
sipclient.cpp in KPhone 4.0.1 and earlier allows remote attackers to cause a denial of service (crash) via a STUN response packet with a large attrLen value that causes an out-of-bounds read.
- Record
CVE-2004-1940- Updated
- 2026-11-02
EUVDEUVD-2004-1932 No score
sipclient.cpp in KPhone 4.0.1 and earlier allows remote attackers to cause a denial of service (crash) via a STUN response packet with a large attrLen value that causes an out-of-bounds read.
- Record
EUVD-2004-1932- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m893-mxxx-c9r6 No score
sipclient.cpp in KPhone 4.0.1 and earlier allows remote attackers to cause a denial of service ...
sipclient.cpp in KPhone 4.0.1 and earlier allows remote attackers to cause a denial of service (crash) via a STUN response packet with a large attrLen value that causes an out-of-bounds read.
- Record
GHSA-m893-mxxx-c9r6- Weakness
- CWE-125
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | KPhone 2.x/3.x/4.0.1 - Malformed STUN Packet Denial of Service | 2004-04-08 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2004-1940 is a medium vulnerability (CVSS 5.0) in Wirlab Kphone, published December 31, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 4.15%, the 90th percentile. No source names a fixed version.