CVE-1999-1150 describes a critical vulnerability in Livingston Portmaster routers running ComOS, where the use of predictable initial sequence numbers (ISNs) for TCP connections allows remote attackers to spoof and hijack active TCP sessions. With a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network with low complexity, potentially leading to unauthorized access, information disclosure, and denial of service. Despite its age and high severity, there is no evidence of active exploitation, publicly available exploit code in common databases like Metasploit or ExploitDB, or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
initialCPE matchmatch criteria | cpe:2.3:h:livingston_portmaster:portmaster:initial:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
No social media mentions found for this CVE.
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.