How severe is CVE-2018-14065?

CVE-2018-14065 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-2018-14065 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14065?

CVE-2018-14065 affects Phpoffice Project Common. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14065?

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-2018-14065 published?

CVE-2018-14065 was published on 2018-07-15 and last updated on 2026-06-17.

CVE-2018-14065

CVE-2018-14065 is a critical-severity vulnerability in Phpoffice Project Common with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Phpoffice Project Common
Published: 2018-07-15
Last modified: 2026-06-17

Description

XMLReader.php in PHPOffice Common before 0.2.9 allows XXE.

Frequently asked questions

What is CVE-2018-14065?: XMLReader.php in PHPOffice Common before 0.2.9 allows XXE.
How severe is CVE-2018-14065?: CVE-2018-14065 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-2018-14065 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14065?: CVE-2018-14065 affects Phpoffice Project Common. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14065?: 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-2018-14065 published?: CVE-2018-14065 was published on 2018-07-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpoffice_project:common:*:*:*:*:*:*:*:*

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