How severe is CVE-2017-8567?

CVE-2017-8567 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-8567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8567?

CVE-2017-8567 affects Microsoft Excel For Mac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8567?

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-2017-8567 published?

CVE-2017-8567 was published on 2017-09-13 and last updated on 2026-06-17.

CVE-2017-8567

CVE-2017-8567 is a high-severity vulnerability in Microsoft Excel For Mac with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Excel For Mac
Published: 2017-09-13
Last modified: 2026-06-17

Description

A remote code execution vulnerability exists in Microsoft Excel for Mac 2011 when it fails to properly handle objects in memory, aka "Microsoft Office Remote Code Execution".

Frequently asked questions

What is CVE-2017-8567?: A remote code execution vulnerability exists in Microsoft Excel for Mac 2011 when it fails to properly handle objects in memory, aka "Microsoft Office Remote Code Execution".
How severe is CVE-2017-8567?: CVE-2017-8567 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-8567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8567?: CVE-2017-8567 affects Microsoft Excel For Mac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8567?: 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-2017-8567 published?: CVE-2017-8567 was published on 2017-09-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:excel_for_mac:2011:*:*:*:*:*:*:*

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