CVE-2020-9987
An inconsistent user interface issue was addressed with improved state management. This issue is...
An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 14.0. Visiting a malicious website may lead to address bar spoofing.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 14.0. Visiting a malicious website may lead to address bar spoofing.
- Record
CVE-2020-9987- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-1021
- Updated
- 2026-11-02
CVE List No score
An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 14.0. Visiting a malicious website may lead to address bar spoofing.
- Record
CVE-2020-9987- Updated
- 2026-11-02
EUVDEUVD-2020-30766 No score
An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 14.0. Visiting a malicious website may lead to address bar spoofing.
- Record
EUVD-2020-30766- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wvgq-535m-4v9q No score
An inconsistent user interface issue was addressed with improved state management. This issue is...
An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 14.0. Visiting a malicious website may lead to address bar spoofing.
- Record
GHSA-wvgq-535m-4v9q- Weakness
- CWE-1021
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-9987 is a medium vulnerability (CVSS 4.3) in Apple Safari, published December 8, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile. No source names a fixed version.