CVE-1999-1150

Summary

CVE-1999-1150 is a cybersecurity vulnerability affecting Livingston Portmaster routers that run ComOS. The issue resides in the use of identical initial sequence numbers (ISNs) for TCP connections. An attacker can exploit this flaw to carry out TCP session spoofing, potentially hijacking active connections and gaining unauthorized access to network resources. This vulnerability poses a significant risk, particularly in environments where secure communication is crucial. Network administrators are advised to update their routers with appropriate patches to mitigate this threat.

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