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AEGLIX vulnerability intelligence

CVE-2021-1879

MEDIUM · CVSS 6.1 · Analyzed

Published: 2021-04-02 · Updated: 2026-06-17 · Source: NVD

Vulnerability overview

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..

Severity and scoring

CVSS score
6.1 · MEDIUM
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Listed in CISA’s Known Exploited Vulnerabilities catalog.

Affected product
Apple · iOS, iPadOS, and watchOS
Added to catalog
2021-11-03
Required action
Apply updates per vendor instructions.
CISA remediation due date
2021-11-17

CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*

    Before (exclusive): 14.4.2

  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

    Before (exclusive): 12.5.2

  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

    From (inclusive): 13.0

    Before (exclusive): 14.4.2

  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

    Before (exclusive): 7.3.3

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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