How severe is CVE-2018-8176?

CVE-2018-8176 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-8176 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8176?

CVE-2018-8176 affects Microsoft Office For Mac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8176?

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

When was CVE-2018-8176 published?

CVE-2018-8176 was published on 2018-05-23 and last updated on 2026-06-17.

CVE-2018-8176

CVE-2018-8176 is a high-severity vulnerability in Microsoft Office For Mac with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.3
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Office For Mac
Published: 2018-05-23
Last modified: 2026-06-17

Description

A remote code execution vulnerability exists in Microsoft PowerPoint software when the software fails to properly validate XML content, aka "Microsoft PowerPoint Remote Code Execution Vulnerability." This affects Microsoft Office.

Frequently asked questions

What is CVE-2018-8176?: A remote code execution vulnerability exists in Microsoft PowerPoint software when the software fails to properly validate XML content, aka "Microsoft PowerPoint Remote Code Execution Vulnerability." This affects Microsoft Office.
How severe is CVE-2018-8176?: CVE-2018-8176 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-8176 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8176?: CVE-2018-8176 affects Microsoft Office For Mac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8176?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-8176 published?: CVE-2018-8176 was published on 2018-05-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:office_for_mac:2016:*:*:*:*:*:*:*

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