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CVE-2018-8173

32
FAUCET Score

CVE-2018-8173 is a remote code execution vulnerability in Microsoft InfoPath, stemming from improper memory handling. This flaw allows an attacker to execute arbitrary code on a vulnerable system. With a CVSS score of 7.8 (HIGH), it requires user interaction (UI:R) and local access (AV:L), but can lead to high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). While not listed in CISA's KEV catalog, its EPSS score of 0.339 indicates a higher-than-average likelihood of exploitation compared to most CVEs. There is no public exploit code available in Metasploit, Nuclei, or ExploitDB, but it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:infopath:2013:sp1:*:*:*:*:*:*

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
19.79%
Probability of exploitation in next 30 days
EPSS Percentile
97.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1979 is in the 97th 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 (3)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Infopath 2013 Service Pack 1 (32-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Infopath 2013 Service Pack 1 (64-bit edition)
View patch

Vendor Advisories (1)

microsoft2018-May/CVE-2018-8173Important

Microsoft InfoPath Remote Code Execution Vulnerability

May 8, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8173
PatchVendor Advisory
securityfocus.com / bid/104069
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040855
Third Party AdvisoryVDB Entry