CVE-2021-1801: apple ios and ipados
Vulnerability summary
CVE-2021-1801 is a medium (CVSS 6.5) vulnerability in apple ios and ipados. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 9 · Related 5Timeline
- 02-04-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Maliciously crafted web content may violate iframe sandboxing policy.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
1.52%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.52% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Apple6 products
- ios and ipados≥ unspecified, < 14.4
- ipad_os< 14.4
- iphone_os< 14.4
- macos≥ unspecified, < 11.2 | ≥ unspecified, < 7.3 | ≥ unspecified, < 14.4 | ≥ 11.0.1, < 11.2
- tvos< 14.4
Ubuntu5 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtkAll versions (No fix recorded) | < 2.30.6-0ubuntu0.18.04.1 | < 2.30.6-0ubuntu0.20.04.1
- webkitgtkAll versions (No fix recorded)
- wpewebkitAll versions (No fix recorded)
Debian2 products
- webkit2gtk< 2.30.6-1
- wpewebkit< 2.30.6-1
Fedoraproject1 product
- fedoraEOL32 | 33
Webkitgtk1 product
- webkitgtk< 2.30.6
5 vendors · 15 products
