CVE-2018-8160 — An information disclosure vulnerability exists in Outlook when a message is open

An information disclosure vulnerability exists in Outlook when a message is opened, aka "Microsoft Outlook Information Disclosure Vulnerability." This affects Word, Microsoft Office.

01What is this vulnerability?

An information disclosure vulnerability exists in Outlook when a message is opened, aka "Microsoft Outlook Information Disclosure Vulnerability." This affects Word, Microsoft Office.

02Affected products

Vendor	Product	Versions
Microsoft	Word	Automation Services on Microsoft SharePoint Server 2010 Service Pack 2
Microsoft	Microsoft Office	2010 Service Pack 2 (32-bit editions), 2010 Service Pack 2 (64-bit editions), Compatibility Pack Service Pack 3, Web Apps Server 2010 Service Pack 2

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: 2018-05-09T19:00:00.000Z
• Last modified: 2024-08-05T06:46:13.512Z

09References

• www.securitytracker.com — http://www.securitytracker.com/id/1040852
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8160
• www.securityfocus.com — http://www.securityfocus.com/bid/104051