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Findings

Vulnerability · CVE-2017-0261

Microsoft Office Use-After-Free Vulnerability

Published May 9, 2017 · corrected/updated Jun 16, 2026 · Microsoft Office · evidence confidence very high

Microsoft Office 2010 SP2, Office 2013 SP1, and Office 2016 allow a remote code execution vulnerability when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0262 and CVE-2017-0281.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2017-0261 is a high public vulnerability record for Microsoft Office. CISA lists it as known exploited. Published remediation guidance: Apply updates per vendor instructions. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Microsoft Office is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: microsoft/office (2010); microsoft/office (2013); microsoft/office (2016); Microsoft Office. Published remediation guidance: Apply updates per vendor instructions. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 7.8, EPSS 78.1%. CISA lists it as known exploited. Weakness classes: CWE-416. Sources contributing to this record: cisa_kev, cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Confirmed in CISA KEV since May 9, 2017. Listed in CISA KEV and VulnCheck KEV.

  • Patch and remediation

    Apply updates per vendor instructions. CISA due date Mar 24, 2022.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2017 · Catalog

    Detected

    Microsoft Office 2010 SP2, Office 2013 SP1, and Office 2016 allow a remote code execution vulnerability when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0262 and CVE-2017-0281.

  2. Mar 3, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Mar 24, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    Microsoft Office 2010 SP2, Office 2013 SP1, and Office 2016 allow a remote code execution vulnerability when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0262 and CVE-2017-0281.

Affected

  • cpe microsoft/office2010
  • cpe microsoft/office2013
  • cpe microsoft/office2016
  • vendor Microsoft Officeversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2017-0261

    Microsoft Office contains a use-after-free vulnerability which can allow for remote code execution.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2017-0261

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2017-0261

    30-day exploitation probability 78.1%

    first.org
  • NIST NVDVulnerability recordCVE-2017-0261

    Microsoft Office 2010 SP2, Office 2013 SP1, and Office 2016 allow a remote code execution vulnerability when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0262 and CVE-2017-0281.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2017-0261

    Microsoft Office contains a use-after-free vulnerability which can allow for remote code execution.

    vulncheck.com

References