Use After Free in Microsoft Office
CVE-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 f…
Vulnerability class: Use-After-Free
EPSS: 0.781 (99.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Office — versions 2010, 2013, 2016
- Microsoft Corporation Office — versions Microsoft Office 2010 SP2, Office 2013 SP1, and Office 2016
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2017-0261?
- CVE-2017-0261 is a high-severity vulnerability in Microsoft Office, classified under Use After Free. CVSS score: 7.8/10. Published 2017-05-12.
- How severe is CVE-2017-0261?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-0261 known to be exploited?
- Yes. CVE-2017-0261 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 11 public proof-of-concept repositories are indexed.