CVE•Published 2026-08-27•Modified 2026-09-01•0 articles on news•5 live references•NVD data
CVE-2026-47863Broadcom · Reactor_core
Vulnerability data via NVD (ingested)
CVSS v3.1
5.9
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
13
Exploit Prediction Scoring System · top 87% of all CVEs
Weaknesses (CWE)
Description
In Reactor Core, applications that use the Flux.bufferTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service (DoS) condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.7.19 and earlier
Timeline
Published 2026-08-27
Modified 2026-09-01
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).
Shodan · vuln tag0 hosts
vuln:CVE-2026-47863Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Broadcom Reactor Core"All exposed Broadcom Reactor Core instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Reactor Core"HTTP body or banner mentions "Reactor Core" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-47863Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-47863Censys host search filtered to this CVE id.
grep.app
CVE-2026-47863Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-47863GitHub code search for direct mentions.
Google dork
"CVE-2026-47863" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-47863 on GitHub.
We haven't classified any articles referencing CVE-2026-47863 yet. The external references above still apply.