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CVE-2018-0791

32
FAUCET Score

CVE-2018-0791 is a remote code execution vulnerability affecting Microsoft Outlook 2007, 2010, 2013, and 2016, stemming from how email messages are parsed. This vulnerability carries a CVSS score of 7.8 (High), indicating a significant risk where an attacker could achieve high confidentiality, integrity, and availability impacts with low attack complexity, requiring user interaction. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, suggesting awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2016:c2r:*:*:*:*:*:*
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2007:sp3:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:rt:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
20.57%
Probability of exploitation in next 30 days
EPSS Percentile
97.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2057 is in the 98th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

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 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 2007 Service Pack 3
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
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

Vendor Advisories (1)

microsoft2018-Jan/CVE-2018-0791Important

Microsoft Office Remote Code Execution Vulnerability

Jan 9, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-0791
PatchVendor Advisory
securityfocus.com / bid/102383
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040154
Third Party AdvisoryVDB Entry