CVE-2007-5636 describes a buffer overflow vulnerability in the Nortel UNIStim IP Softphone 2050. Attackers can exploit this by sending a flood of invalid characters to the RTCP port (5678/udp), leading to a denial of service (application abort) and potentially arbitrary code execution. With a CVSS score of 7.5, this high-severity vulnerability is easily exploitable remotely without authentication, allowing for partial impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code exists on ExploitDB, though there is no evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:nortel:ip_softphone_2050:*:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.