CVE-2017-8571
Microsoft Outlook 2007 SP3, Outlook 2010 SP2, Outlook 2013 SP1, Outlook 2013 RT SP1, and Outlook 2016 as packaged in Microsoft Office allows a security feature bypass vulnerability due to the way that it handles input, aka "Microsoft Office Outlook…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Microsoft Outlook 2007 SP3, Outlook 2010 SP2, Outlook 2013 SP1, Outlook 2013 RT SP1, and Outlook 2016 as packaged in Microsoft Office allows a security feature bypass vulnerability due to the way that it handles input, aka "Microsoft Office Outlook Security Feature Bypass Vulnerability".
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 5.78% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- microsoft/outlook
- Source
- secure@microsoft.com
EPSS 5.8% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/99452Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039012Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8571Patch, Vendor Advisory
- http://www.securityfocus.com/bid/99452Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039012Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8571Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.