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CVE-2017-5644

22
FAUCET Score

CVE-2017-5644 describes a denial-of-service vulnerability in Apache POI versions prior to 3.15. This flaw, an XML Entity Expansion (XEE) attack, allows remote attackers to consume excessive CPU resources by processing a specially crafted OOXML file. Rated Medium severity (CVSS 5.5), it requires user interaction and local access for exploitation, but can lead to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.14CPE matchmatch criteria
cpe:2.3:a:apache:poi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.59%
Probability of exploitation in next 30 days
EPSS Percentile
90.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0459 is in the 97th percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.poi:poiFixed in: 3.15

Vendor Advisories (1)

mavenGHSA-78vv-qj73-h9m5medium

Improper Restriction of Recursive Entity References in DTDs in Apache POI

May 13, 2022

References

poi.apache.org
Vendor Advisory
oracle.com / security-alerts/cpuoct2020.html
securityfocus.com / bid/96983