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CVE-2018-8244

21
FAUCET Score

CVE-2018-8244 is an elevation of privilege vulnerability in Microsoft Outlook and Office, stemming from improper validation of attachment headers. With a CVSS score of 6.5 (Medium), it can be exploited remotely with low attack complexity, requiring user interaction to achieve high integrity impact. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are minimal, with only one article mentioning its fix in the June 2018 Patch Tuesday.

Impacted Technologies

VendorProductVersion(s)CPE
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2016:*:*:*:click-to-run:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:*
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook_rt:2013:sp1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.85%
Probability of exploitation in next 30 days
EPSS Percentile
91.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0485 is in the 96th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Outlook 2016 (32-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Outlook 2016 (64-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions
microsoftpatch availablevia msrc
Product: Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions
microsoftpatch availablevia msrc
Product: Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Outlook 2013 RT Service Pack 1

Vendor Advisories (1)

microsoft2018-Jun/CVE-2018-8244Important

Microsoft Outlook Elevation of Privilege Vulnerability

Jun 12, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8244
PatchVendor Advisory
securityfocus.com / bid/104323
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041107
Third Party AdvisoryVDB Entry