How severe is CVE-2016-5000?

CVE-2016-5000 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-5000 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5000?

CVE-2016-5000 affects Apache Poi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5000?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-5000 published?

CVE-2016-5000 was published on 2016-08-05 and last updated on 2026-06-17.

CVE-2016-5000

CVE-2016-5000 is a medium-severity vulnerability in Apache Poi with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-611.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Apache Poi
Published: 2016-08-05
Last modified: 2026-06-17

Description

The XLSX2CSV example in Apache POI before 3.14 allows remote attackers to read arbitrary files via a crafted OpenXML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

Frequently asked questions

What is CVE-2016-5000?: The XLSX2CSV example in Apache POI before 3.14 allows remote attackers to read arbitrary files via a crafted OpenXML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.
How severe is CVE-2016-5000?: CVE-2016-5000 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-5000 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5000?: CVE-2016-5000 affects Apache Poi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5000?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-5000 published?: CVE-2016-5000 was published on 2016-08-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:poi:*:*:*:*:*:*:*:*

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