How severe is CVE-2018-8567?

CVE-2018-8567 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-8567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8567?

CVE-2018-8567 affects Microsoft Edge. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8567?

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

When was CVE-2018-8567 published?

CVE-2018-8567 was published on 2018-11-14 and last updated on 2026-06-17.

CVE-2018-8567

CVE-2018-8567 is a medium-severity vulnerability in Microsoft Edge with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 5.8
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Edge
Published: 2018-11-14
Last modified: 2026-06-17

Description

An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain, aka "Microsoft Edge Elevation of Privilege Vulnerability." This affects Microsoft Edge.

Frequently asked questions

What is CVE-2018-8567?: An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain, aka "Microsoft Edge Elevation of Privilege Vulnerability." This affects Microsoft Edge.
How severe is CVE-2018-8567?: CVE-2018-8567 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-8567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8567?: CVE-2018-8567 affects Microsoft Edge. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8567?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-8567 published?: CVE-2018-8567 was published on 2018-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*

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