CVE-2017-8507
A remote code execution vulnerability exists in the way Microsoft Office software parses specially crafted email messages, aka "Microsoft Office Memory Corruption Vulnerability".
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
A remote code execution vulnerability exists in the way Microsoft Office software parses specially crafted email messages, aka "Microsoft Office Memory Corruption 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
- 19.61% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- microsoft/outlook
- Source
- secure@microsoft.com
EPSS moved from 23.4% on 21 September 2026 to 19.6% 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/98827Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038666Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8507Patch, Vendor Advisory
- http://www.securityfocus.com/bid/98827Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038666Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8507Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.