OfficeApplication · Microsoft

CVE-2016-7277

CRITICAL · 9.6 CVSS v3.0 Published 2016-12-20
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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."

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Memory corruption vulnerability in Microsoft Office 2016 that can be exploited via a specially crafted document, allowing remote attackers to execute arbitrary code or cause a denial of service.

MitigationApply the relevant Microsoft security update for Microsoft Office 2016 and exercise caution when opening documents from untrusted sources.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
OfficeApplication
Affected:= 2016

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Office 2016 is installed
    Open any Office application (such as Word, Excel, or PowerPoint), go to File > Account or File > Help, and look for the version information displayed there. Alternatively, check the installed programs list in Windows Control Panel.
    Affected if Microsoft Office 2016 is present on the system
  2. Confirm the exact Office version number
    Within the Office application, navigate to File > Account > About [App] (for example, About Word) to display the full version and build number. Compare this against the affected version range.
    Affected if The displayed version corresponds to Microsoft Office 2016 (exact version match)
  3. Check Windows installed programs
    Open Control Panel > Programs and Features, locate Microsoft Office 2016 in the list, and verify the installed version displayed in the program entry.
    Affected if Microsoft Office 2016 appears in the installed programs with a valid version entry

A user is affected if Microsoft Office 2016 is installed and the specific version matches the affected release (version equals 2016).

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the relevant Microsoft security update for Microsoft Office 2016 and exercise caution when opening documents from untrusted sources.

Recommended fix Moderate confidence

Apply Microsoft Security Bulletin MS16-148 (or subsequent Office 2016 security updates)

  1. Open Microsoft Word or any Office 2016 application
  2. Go to File > Account > Update Options > Update Now
  3. Alternatively, open Windows Update (Windows Key + R, type: ms-settings:windowsupdate) and check for updates
  4. Install all available Office 2016 security updates, particularly any from December 2016 or later
  5. Restart the computer after installing updates
  6. Verify the update was installed by going to File > Account > About Word and noting the version number matches the latest available
Caveat Standard security update with no expected breaking changes; may require restart

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Office Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2016-7277 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2016-7277 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data