CVE•Published 2026-07-14•Modified 2026-07-23•2 articles on news•5 live references•NVD data
CVE-2026-50522Microsoft · Sharepoint_server
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
97
Exploit Prediction Scoring System · top 3% of all CVEs
Weaknesses (CWE)
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Timeline
Published 2026-07-14
Modified 2026-07-23
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 tag15,747 hosts
vuln:CVE-2026-50522Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Microsoft Sharepoint Server"All exposed Microsoft Sharepoint Server instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Sharepoint Server"HTTP body or banner mentions "Sharepoint Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-50522Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-50522Censys host search filtered to this CVE id.
grep.app
CVE-2026-50522Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-50522GitHub code search for direct mentions.
Google dork
"CVE-2026-50522" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (6)
CVE-2026-505226 repos
JFR-C/Windows-Penetration-TestingC
Technical notes, AD pentest methodology, list of tools, scripts and Windows commands that are useful for internal penetration tests and assumed breach exercises (red teaming).
killvxk/gitweeklyPython
收集各种有趣的github项目
4minx/CVE-2026-50522C#
CVE-2026-50522 PoC
barmi/cve-patch-auditorGo
Audit CVE impact, patch status, remediation progress, and verification results across systems.
WismanSec/sharepoint-2026-pocHTML
PoC, IOCs, and detection logic for the SharePoint /_trust WS-Federation BinaryFormatter deserialization chain. Lab reconstruction covering unauthenticated RCE, in-process machine k…
srkyn/kev-prioritization-notesPowerShell