CVE-2021-22998

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, SYN flood protection thresholds are not enforced in secure network address translation SNAT listeners. Note: Software versions which...

CVE-2021-22998

creationtimestamp| type| source ---|---|--- 2025-09-01 09:10:11+00:00| seen| https://gist.github.com/Darkcrai86/aeef21f10ed3a9dfa9729e3990c5c028...

K31934524: BIG-IP SNAT vulnerability CVE-2021-22998

Security Advisory Description SYN flood protection thresholds are not enforced in secure network address translation SNAT listeners. CVE-2021-22998 Impact Connections to SNAT listeners are not bound by SYN cookie thresholds, leaving them potentially vulnerable to SYN flood class attacks. This iss...

CVE-2021-22998

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, SYN flood protection thresholds are not enforced in secure network address translation SNAT listeners. Note: Software versions which...

CVE-2021-22998

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, SYN flood protection thresholds are not enforced in secure network address translation SNAT listeners. Note: Software versions which...

CVE-2021-22998

CVE-2021-22998 affects BIG-IP SNAT listeners: SYN flood protection thresholds are not enforced, potentially allowing affected SNAT traffic to exceed protection. Fixed in later BIG-IP releases; upgrade to 16.1.0 or 16.0.1.1 and later per vendor advisories. Exploitation details are not provided in ...