CVE-2025-40820 - Apache TCP Sequence Number Validation Bypass

CVE ID : CVE-2025-40820 Published : Dec. 9, 2025, 12:29 p.m. | 1 hour, 57 minutes ago Description : Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to interfere with connection setup, potentially leading to a denial of service. The attack succeeds only if an attacker can inject IP packets with spoofed addresses at precisely timed moments, and it affects only TCP-based services. Severity: 7.5 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...

Source: Telegram CVE Monitor