CVE-2018-0852
Microsoft Outlook 2007 SP3, Microsoft Outlook 2010 SP2, Microsoft Outlook 2013 SP1 and RT SP1, Microsoft Outlook 2016, and Microsoft Office 2016 Click-to-Run (C2R) allow a remote code execution vulnerability, due to how Outlook handles objects in…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
Microsoft Outlook 2007 SP3, Microsoft Outlook 2010 SP2, Microsoft Outlook 2013 SP1 and RT SP1, Microsoft Outlook 2016, and Microsoft Office 2016 Click-to-Run (C2R) allow a remote code execution vulnerability, due to how Outlook handles objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE is unique from CVE-2018-0851.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 19.35% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- microsoft/office · microsoft/outlook
- Source
- secure@microsoft.com
EPSS moved from 18.1% on 21 September 2026 to 19.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/102871Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040368Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0852Patch, Vendor Advisory
- http://www.securityfocus.com/bid/102871Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040368Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0852Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.