As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has…
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.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Cisco
- Product
- Snort
- CVSS
- 9.0
- EPSS
- 0.004 (p30)
- Exposure class
- Endpoint security
Why it ranks 35 (Notable)
- CVSS 9.0 critical
- Product class: endpoint security
- Widely deployed vendor product (Cisco)
- Covered by 2 independent sources
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-20043 on this site · NVD · CVE.org · Vulnpedia
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