CVE-2021-1879
CVSS v3
6.1
MEDIUM
EPSS Score
1.5 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
This issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOS 7.3.3. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been actively exploited..
CISA Known Exploited Vulnerability
- Date Added
- 2021-11-03
- Patch Due Date
- 2021-11-17
- Ransomware Use
- Unknown
Technical details
- Published
- 2021-04-02
Frequently asked questions
What is CVE-2021-1879?
This issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOS 7.3.3. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been actively exploited..
Is CVE-2021-1879 actively exploited?
Yes. CVE-2021-1879 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2021-11-17.
What is the CVSS score for CVE-2021-1879?
CVE-2021-1879 has a CVSS v3 base score of 6.1 (MEDIUM severity).
Is CVE-2021-1879 affecting your environment?
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