CVE-2026-20043Critical· 9.0▾ MidnightAs 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 harde…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 49.5 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.3%
0.3% → 0.4%
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-2026-20043 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.
cyber_vision 3.0.0cyber_vision 3.0.2cyber_vision 3.0.3cyber_vision 3.0.1cyber_vision 3.1.0cyber_vision 3.0.4cyber_vision 3.1.1cyber_vision 3.1.2cyber_vision 3.2.0cyber_vision 3.0.5cyber_vision 3.2.1cyber_vision 3.0.6cyber_vision 3.2.2cyber_vision 3.2.3cyber_vision 3.2.4cyber_vision 4.0.0cyber_vision 4.0.1cyber_vision 4.0.2cyber_vision 4.0.3cyber_vision 4.1.0cyber_vision 4.1.1cyber_vision 4.1.2cyber_vision 4.1.3cyber_vision 4.1.4cyber_vision 4.2.0cyber_vision 4.2.1cyber_vision 4.1.5cyber_vision 4.2.2cyber_vision 4.2.Xcyber_vision 4.2.3cyber_vision 4.2.4cyber_vision 4.2.6cyber_vision 4.1.6cyber_vision 4.3.0cyber_vision 4.3.1cyber_vision 4.3.2cyber_vision 4.3.3cyber_vision 4.4.0cyber_vision 4.4.1cyber_vision 4.4.2cyber_vision 4.4.3cyber_vision 4.1.7cyber_vision 5.0.0cyber_vision 5.0.1cyber_vision 5.0.2cyber_vision 5.1.0cyber_vision 5.1.1cyber_vision 5.1.2cyber_vision 5.1.3cyber_vision 5.2.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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