How severe is CVE-2018-0819?

CVE-2018-0819 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-0819 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0819?

CVE-2018-0819 affects Microsoft Office. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-0819?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-0819 published?

CVE-2018-0819 was published on 2018-01-10 and last updated on 2026-06-17.

CVE-2018-0819

CVE-2018-0819 is a medium-severity vulnerability in Microsoft Office with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Office
Published: 2018-01-10
Last modified: 2026-06-17

Description

Microsoft Office 2016 for Mac allows an attacker to send a specially crafted email attachment to a user in an attempt to launch a social engineering attack, such as phishing, due to how Outlook for Mac displays encoded email addresses, aka "Spoofing Vulnerability in Microsoft Office for Mac."

Frequently asked questions

What is CVE-2018-0819?: Microsoft Office 2016 for Mac allows an attacker to send a specially crafted email attachment to a user in an attempt to launch a social engineering attack, such as phishing, due to how Outlook for Mac displays encoded email addresses, aka "Spoofing Vulnerability in Microsoft Office for Mac."
How severe is CVE-2018-0819?: CVE-2018-0819 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-0819 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0819?: CVE-2018-0819 affects Microsoft Office. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-0819?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-0819 published?: CVE-2018-0819 was published on 2018-01-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:office:2016:*:*:*:*:mac_os_x:*:*

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