CVE-2026-88778

Citrix NetScaler ADC and NetScaler Gateway are vulnerable to a TCP Initial Sequence Number (ISN) prediction flaw. The issue affects appliances with TCP-based virtual servers (such as HTTP, SSL, or TCP) where Enhanced ISN Generation is disabled. This vulnerability allows for predictable sequence n...

CVE-2026-88778 TCP Initial Sequence Number (ISN) prediction

Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23...

CVE-2026-64024

In the Linux kernel, the following vulnerability has been resolved: tcp: fix stale per-CPU tcptwisn leak enabling ISN prediction Blamed commit moved the TIMEWAIT-derived ISN from the skb control block to a per-CPU variable, assuming the value would always be consumed by tcpconnrequest for the sam...

CVE-2026-64024: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tcp: fix stale per-CPU tcptwisn leak enabling ISN prediction Blamed commit moved the TIMEWAIT-derived ISN from the skb control block to a per-CPU variable, assuming the value would always be consumed by tcpconnrequest for the sam...

CVE-2014-9196: Predictable Exact Value from Previous Values

Eaton Cooper Power Systems ProView 4.0 and 5.0 before 5.0 11 on Form 6 controls and Idea and IdeaPLUS relays generates TCP initial sequence number ISN values linearly, which makes it easier for remote attackers to spoof TCP sessions by predicting an ISN value...

FreeBSD-SA-03:03.syncookies

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-03:03.syncookies Security Advisory The FreeBSD Project Topic: Brute force attack on SYN cookies Category: core Module: sysnetinet Announced: 2003-02-24 Credits:...