EUVD-2026-55499

In the Linux kernel, the following vulnerability has been resolved: tcp: challenge ACK for non-exact RST in SYN-RECEIVED The SYN-RECEIVED request-socket path in tcpcheckreq accepts an in-window RST without requiring SEG.SEQ to exactly match RCV.NXT. A non-exact RST therefore removes the request...

CVE-2025-62820

A flaw was found in Slack Nebula. An improper CIDR construction in the hostmap logic makes the inbound firewall overly permissive for nodes with certificates allowing subnets or multiple IPs. An attacker controlling such a node can send packets with arbitrary source IP addresses within the networ...