VulnSocial

CVE-2026-20356

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-400

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-11-06: 111-06
Referenced assets1 URL
By indicator
Full discourse1 post
  • VulniPulse@vulnipulse

    Cisco Snort 3 hardening fixes out-of-bounds writes in Secure Firewall Threat Defense: CVE-2026-20043, CVE-2026-20236, CVE-2026-20291, CVE-2026-20356. Critical, CVSS 9. Upgrade to a fixed release. https://vulnipulse.com/advisories/cisco-cisco-sa-hardening-snort3-ybgmhtqe #CVE #CyberSecurity #Cisco #CiscoFTD

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