How severe is CVE-2016-1000031?

CVE-2016-1000031 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-1000031 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1000031?

CVE-2016-1000031 affects Apache Commons Fileupload. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-1000031?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-1000031 published?

CVE-2016-1000031 was published on 2016-10-25 and last updated on 2026-06-17.

CVE-2016-1000031

CVE-2016-1000031 is a critical-severity vulnerability in Apache Commons Fileupload with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 34% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 34% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Apache Commons Fileupload
Published: 2016-10-25
Last modified: 2026-06-17

Description

Apache Commons FileUpload before 1.3.3 DiskFileItem File Manipulation Remote Code Execution

Frequently asked questions

What is CVE-2016-1000031?: Apache Commons FileUpload before 1.3.3 DiskFileItem File Manipulation Remote Code Execution
How severe is CVE-2016-1000031?: CVE-2016-1000031 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-1000031 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1000031?: CVE-2016-1000031 affects Apache Commons Fileupload. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-1000031?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-1000031 published?: CVE-2016-1000031 was published on 2016-10-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:commons_fileupload:*:*:*:*:*:*:*:*

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