CVE-2004-1940 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 4.1% (pctl 91)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 4.15% — more likely to be exploited than 91% of all CVEs |
| Weakness | CWE-125 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2004-12-31 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| wirlab | kphone |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | KPhone 2.x/3.x/4.0.1 - Malformed STUN Packet Denial of Service | 2004-04-08 |
References
- http://marc.info/?l=bugtraq&m=108244325924859&w=2
- http://www.securiteam.com/unixfocus/5PP0B1FCLY.html
- http://www.securityfocus.com/bid/10159
- http://www.wirlab.net/kphone/changes-4.0.2.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15874
- http://marc.info/?l=bugtraq&m=108244325924859&w=2
- http://www.securiteam.com/unixfocus/5PP0B1FCLY.html
- http://www.securityfocus.com/bid/10159
- http://www.wirlab.net/kphone/changes-4.0.2.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15874
→ the Explorer · watch your stack · NVD