How severe is CVE-2023-36027?

CVE-2023-36027 has a CVSS 3.x base score of 7.1, rated high 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 low.

Is CVE-2023-36027 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36027?

CVE-2023-36027 primarily affects Microsoft Edge Chromium. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-36027?

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-2023-36027 published?

CVE-2023-36027 was published on 2023-11-10 and last updated on 2026-06-17.

CVE-2023-36027

CVE-2023-36027 is a high-severity vulnerability in Microsoft Edge Chromium with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Edge Chromium
Published: 2023-11-10
Last modified: 2026-06-17

Description

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Frequently asked questions

What is CVE-2023-36027?: Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
How severe is CVE-2023-36027?: CVE-2023-36027 has a CVSS 3.x base score of 7.1, rated high 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 low.
Is CVE-2023-36027 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36027?: CVE-2023-36027 primarily affects Microsoft Edge Chromium. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-36027?: 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-2023-36027 published?: CVE-2023-36027 was published on 2023-11-10 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36027

Affected products (2)

cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:extended_stable:*:*:*
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

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