How severe is CVE-2023-28261?

CVE-2023-28261 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2023-28261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28261?

CVE-2023-28261 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-2023-28261?

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

When was CVE-2023-28261 published?

CVE-2023-28261 was published on 2023-04-27 and last updated on 2026-06-17.

CVE-2023-28261

CVE-2023-28261 is a medium-severity vulnerability in Microsoft Edge Chromium with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Microsoft Edge Chromium
Published: 2023-04-27
Last modified: 2026-06-17

Description

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Frequently asked questions

What is CVE-2023-28261?: Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
How severe is CVE-2023-28261?: CVE-2023-28261 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2023-28261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28261?: CVE-2023-28261 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-2023-28261?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28261 published?: CVE-2023-28261 was published on 2023-04-27 and last updated on 2026-06-17.

References

Affected products (2)

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

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