CVE•Published 2026-07-08•Modified 2026-07-10•0 articles on news•4 live references•NVD data
CVE-2026-54777
Vulnerability data via NVD (ingested)
CVSS v3.1
6.5
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
EPSS percentile
—
Weaknesses (CWE)
Description
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF NetNamedPipe transport accepts attachment to a pre-existing named pipe instance, allowing local interception of NetNamedPipe traffic when an attacker races NamedPipeListener startup between shared memory GUID publication and service named pipe creation. This issue is fixed in versions 1.8.1 and 1.9.1.
Timeline
Published 2026-07-08
Modified 2026-07-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-54777Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-54777Censys host search filtered to this CVE id.
grep.app
CVE-2026-54777Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-54777GitHub code search for direct mentions.
Google dork
"CVE-2026-54777" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-54777 on GitHub.
We haven't classified any articles referencing CVE-2026-54777 yet. The external references above still apply.