CVE•Published 2017-03-24•Modified 2026-05-13•0 articles on news•7 live references•NVD data

CVE-2017-5644Apache · Poi

Vulnerability data via NVD (ingested)

CVSS v3.1

5.5

MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS percentile

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Weaknesses (CWE)

CWE-776Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Description

Apache POI in versions prior to release 3.15 allows remote attackers to cause a denial of service (CPU consumption) via a specially crafted OOXML file, aka an XML Entity Expansion (XEE) attack.

Timeline

Published 2017-03-24

Modified 2026-05-13

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus trickest/cve 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-2017-5644

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Apache Poi"

All exposed Apache Poi instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Poi"

HTTP body or banner mentions "Poi" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2017-5644