CVE-2019-0953 — A remote code execution vulnerability exists in Microsoft Word software when it

A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka 'Microsoft Word Remote Code Execution Vulnerability'.

01What is this vulnerability?

A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka 'Microsoft Word Remote Code Execution Vulnerability'.

02Affected products

Vendor	Product	Versions
Microsoft	Microsoft Office	2016 for Mac, 2019 for 32-bit editions, 2019 for 64-bit editions, 2019 for Mac
Microsoft	Microsoft Word	2016 (32-bit edition), 2016 (64-bit edition)
Microsoft	Office 365 ProPlus	32-bit Systems, 64-bit Systems
Microsoft	Microsoft Office Online Server	unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-05-16T18:17:03.000Z
• Last modified: 2024-08-04T17:58:59.596Z

09References

• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0953