CVE-2018-8569

Yammer vulnerability

CVSS

7.8

EPSS

13.3%

EPSS pct

96th

Exploited

No known

A remote code execution vulnerability exists in the Yammer desktop application due to the loading of arbitrary content, aka "Yammer Desktop Application Remote Code Execution Vulnerability." This affects Yammer Desktop App.

Affected vendor

Microsoft

Affected product

Yammer

CVSS vector

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

Published

2018-10-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 13.3% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2018-8569

Confirm whether Microsoft Yammer is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-8569.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-8569

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-8569 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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