CVE-2021-30884: apple ios and ipados
CVSS: 4.7v3.1MediumModified
AliasesUBUNTU-CVE-2021-30884DEBIAN-CVE-2021-30884
Published 24-08-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-30884 is a medium (CVSS 4.7) vulnerability in apple ios and ipados. EPSS estimates a 1.16% chance of exploitation in the next 30 days, higher than 66.6% of scored vulnerabilities.
CVSS score
4.7/10
010
Medium · v3.1 (NVD)EPSS score
1.16%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 5Timeline
- 24-08-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The issue was resolved with additional restrictions on CSS compositing. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Visiting a maliciously crafted website may reveal a user's browsing history.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 4.7Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.16%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
0.00 pp
From 1.16% on 19-09-2026
19-09-202619-10-2026
EPSS score1.16%
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, < 15
- ipados< 15.0
- iphone_os< 15.0
- macos< 12.0.1
- tvos≥ unspecified, < 15 | < 15.0
Ubuntu5 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtkAll versions (No fix recorded) | < 2.34.1-0ubuntu0.20.04.1 | < 2.34.0-1ubuntu1
- webkitgtkAll versions (No fix recorded)
- wpewebkitAll versions (No fix recorded)
Debian2 products
- webkit2gtk< 2.34.1-1
- wpewebkit< 2.34.1-1
3 vendors · 13 products
References
9 links- support.apple.com/en-us/HT212814X Refsource MISC
- support.apple.com/en-us/HT212819X Refsource MISC
- support.apple.com/en-us/HT212815X Refsource MISC
- support.apple.com/kb/HT212869X Refsource CONFIRM
