cbcvebase.
CVE-2026-20236
published 2026-10-21

CVE-2026-20236: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a…

PriorityP343high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.35%
26.9th percentile
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20236 are related to issues concerning incorrect calculation that are grouped under the Common Weakness Enumeration (CWE) Base CWE-682.

Affected

268 ranges· showing 25
VendorProductVersion rangeFixed in
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
ciscocisco_cyber_vision——
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.