CVE-2026-20356
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned…
- Risk score
- 65/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 21 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- The Snort 3 Software has a vulnerability related to uncontrolled resource consumption, which could allow an attacker to cause a denial of service (DoS).
- Affected
- {'product': 'Snort 3 Software', 'vendor': 'Cisco', 'packages': [], 'versions': 'Unknown'}
- Fix
- Check the linked advisory for details on the fix.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 7.5 high
- Remotely exploitable without logging in
- On your watchlist: cisco
References
Original description
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-2026-20356 are related to issues concerning uncontrolled resource consumption that are grouped under the Common Weakness Enumeration (CWE) Base CWE-400.
Last activity 21 Oct 2026. Patch Forecast updates every hour.