CVE-2020-0663
CVE-2020-0663 is a medium-severity vulnerability in Microsoft Edge with a CVSS 3.x base score of 4.2. 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 4.2)
- CVSS v2: 4.0
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Edge
- Published:
- Last modified:
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.In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability, aka 'Microsoft Edge Elevation of Privilege Vulnerability'.
Frequently asked questions
- What is CVE-2020-0663?
- 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.In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability, aka 'Microsoft Edge Elevation of Privilege Vulnerability'.
- How severe is CVE-2020-0663?
- CVE-2020-0663 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-0663 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-0663?
- CVE-2020-0663 affects Microsoft Edge. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-0663?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-0663 published?
- CVE-2020-0663 was published on 2020-02-11 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*
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