How severe is CVE-2018-8173?

CVE-2018-8173 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-8173 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8173?

CVE-2018-8173 affects Microsoft Infopath. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8173?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-8173 published?

CVE-2018-8173 was published on 2018-05-09 and last updated on 2026-06-17.

CVE-2018-8173

CVE-2018-8173 is a high-severity vulnerability in Microsoft Infopath with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 19% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Infopath
Published: 2018-05-09
Last modified: 2026-06-17

Description

A remote code execution vulnerability exists in Microsoft InfoPath when the software fails to properly handle objects in memory, aka "Microsoft InfoPath Remote Code Execution Vulnerability." This affects Microsoft Infopath.

Frequently asked questions

What is CVE-2018-8173?: A remote code execution vulnerability exists in Microsoft InfoPath when the software fails to properly handle objects in memory, aka "Microsoft InfoPath Remote Code Execution Vulnerability." This affects Microsoft Infopath.
How severe is CVE-2018-8173?: CVE-2018-8173 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-8173 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8173?: CVE-2018-8173 affects Microsoft Infopath. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8173?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-8173 published?: CVE-2018-8173 was published on 2018-05-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:infopath:2013:sp1:*:*:*:*:*:*

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