CVE•Published 2021-07-14•Modified 2026-08-10•1 article on news•6 live references•NVD data
CVE-2021-34470Microsoft · Exchange_server
Vulnerability data via NVD (ingested)
CVSS v3.1
8.0
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
87
Exploit Prediction Scoring System · top 13% of all CVEs
Description
Microsoft Exchange Server Elevation of Privilege Vulnerability
Timeline
Published 2021-07-14
Modified 2026-08-10
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).
Shodan · vuln tag0 hosts
vuln:CVE-2021-34470Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Microsoft Exchange Server" version:"2013"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Exchange Server"HTTP body or banner mentions "Exchange Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-34470Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-34470Censys host search filtered to this CVE id.
grep.app
CVE-2021-34470Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-34470GitHub code search for direct mentions.
Google dork
"CVE-2021-34470" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (6)
CVE-2021-344706 repos
eeeeeeeeee-code/POCunknown
备份的漏洞库，3月开始我们来维护
Ostorlab/KEVunknown
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
DMW11525708/wikiunknown
漏洞文库 wiki.wy876.cn
laoa1573/wy876Python
wy876
Yuan08o/pocsunknown
iemotion/POCunknown
2023HW漏洞整理，收集整理漏洞EXp/POC,大部分漏洞来源网络，目前收集整理了300多个poc/exp，长期更新。