How severe is CVE-2020-3833?

CVE-2020-3833 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-3833 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3833?

CVE-2020-3833 affects Apple Safari. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-3833?

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

When was CVE-2020-3833 published?

CVE-2020-3833 was published on 2020-02-27 and last updated on 2026-06-17.

CVE-2020-3833

CVE-2020-3833 is a medium-severity vulnerability in Apple Safari with a CVSS 3.x base score of 4.3. 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 4.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Safari
Published: 2020-02-27
Last modified: 2026-06-17

Description

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 13.0.5. Visiting a malicious website may lead to address bar spoofing.

Frequently asked questions

What is CVE-2020-3833?: An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 13.0.5. Visiting a malicious website may lead to address bar spoofing.
How severe is CVE-2020-3833?: CVE-2020-3833 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-3833 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3833?: CVE-2020-3833 affects Apple Safari. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-3833?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-3833 published?: CVE-2020-3833 was published on 2020-02-27 and last updated on 2026-06-17.

References

https://support.apple.com/HT210922

Affected products (1)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*

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