How severe is CVE-2016-7277?

CVE-2016-7277 has a CVSS 3.x base score of 9.6, rated critical 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-2016-7277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-7277?

CVE-2016-7277 affects Microsoft Office. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-7277?

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-2016-7277 published?

CVE-2016-7277 was published on 2016-12-20 and last updated on 2026-06-17.

CVE-2016-7277

CVE-2016-7277 is a critical-severity vulnerability in Microsoft Office with a CVSS 3.x base score of 9.6. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v2: 9.3
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Office
Published: 2016-12-20
Last modified: 2026-06-17

Description

Microsoft Office 2016 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."

Frequently asked questions

What is CVE-2016-7277?: Microsoft Office 2016 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."
How severe is CVE-2016-7277?: CVE-2016-7277 has a CVSS 3.x base score of 9.6, rated critical 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-2016-7277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-7277?: CVE-2016-7277 affects Microsoft Office. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-7277?: 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-2016-7277 published?: CVE-2016-7277 was published on 2016-12-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:*:*

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