CVE•Published 2026-06-09•Modified 2026-07-23•5 articles on news•4 live references•NVD data

CVE-2026-47291Microsoft · Windows_10_1607

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 3% of all CVEs

Weaknesses (CWE)

CWE-122Heap-based Buffer Overflow CWE-190Integer Overflow or Wraparound

Description

Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.

Timeline

Published 2026-06-09

Modified 2026-07-23

External references

NVD MITRE Exploit-DB VulnCheck

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-2026-47291

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · OS

os:"Windows 10 1607"

Hosts Shodan identified as running Windows 10 1607.

More intel sources (5)

Shodan report

vuln:CVE-2026-47291

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2026-47291

Censys host search filtered to this CVE id.

grep.app

CVE-2026-47291

Public source-code mentions — fast PoC discovery.

GitHub code

CVE-2026-47291

GitHub code search for direct mentions.

Google dork

"CVE-2026-47291" exploit -site:nvd.nist.gov

Write-ups and news, NVD excluded.

Known PoCs on GitHub (7)

CVE-2026-472917 repos

Threekiii/CVEunknown

一个 CVE 漏洞预警知识库，无 exp/poc，部分包含修复方案。A knowledge base of CVE security vulnerability, no PoCs/exploits.

★ 179·updated 2mo ago

dhmosfunk/CVE-2026-49160-CVE-2026-47291-HTTP.sysPython

HTTP.sys Denial of Service Vulnerability & HTTP.sys Remote Code Execution Vulnerability

★ 5·updated 3mo ago

jonnybottles/patch-tuesday-mcpPython

MCP server for Microsoft Patch Tuesday - query MSRC security updates, CVEs, and KBs with EPSS + CISA KEV enrichment. No API keys. Works with Claude, Copilot, Cursor, and any MCP cl…

★ 4·updated 2w ago

Krishcalin/Detection-Engineeringunknown

Security Operation Center (SOC) attack detection and response

★ 4·updated 3mo ago

dhmosfunk/dhmosfunkunknown

https://dhmosfunk.github.io/

★ 2·updated 3mo ago

Krishcalin/Exploit-PoCPython

A series of open-source exploit proof of concept (PoC) for testing vulnerabilities and developing detection engineering rules

★ 1·updated 3mo ago

sarthakdewanda/wazuh-siem-labunknown

Wazuh SIEM home lab, deployed on Ubuntu with Windows agent integration and real-time File Integrity Monitoring (FIM)

★ 1·updated 2mo ago