CVE-2017-8570
Microsoft Office Remote Code Execution Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 25 August 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0243.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 89.89% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 9 January 2018
- CISA KEV
- Listed 25 February 2022 · due 25 August 2022
- Affected
- microsoft/office
- Source
- secure@microsoft.com
EPSS 89.9% 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.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-8570
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/99445Broken Link, Third Party Advisory, VDB Entry
- https://github.com/ParsingTeam/ppsx-file-generatorExploit, Third Party Advisory
- https://github.com/rxwx/CVE-2017-8570Third Party Advisory
- https://github.com/tezukanice/Office8570Exploit, Third Party Advisory
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570Patch, Vendor Advisory
- http://www.securityfocus.com/bid/99445Broken Link, Third Party Advisory, VDB Entry
- https://github.com/ParsingTeam/ppsx-file-generatorExploit, Third Party Advisory
- https://github.com/rxwx/CVE-2017-8570Third Party Advisory
- https://github.com/tezukanice/Office8570Exploit, Third Party Advisory
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8570US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.