CVE-2021-30888: apple ios and ipados Open Redirect
CVSS: 7.4v3.1HighModified
AliasesUBUNTU-CVE-2021-30888DEBIAN-CVE-2021-30888
Published 24-08-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-30888 is a high (CVSS 7.4) Open Redirect vulnerability in apple ios and ipados. EPSS estimates a 1.73% chance of exploitation in the next 30 days, higher than 77.2% of scored vulnerabilities.
CVSS score
7.4/10
010
High · v3.1 (NVD)EPSS score
1.73%
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
An information leakage issue was addressed. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1. A malicious website using Content Security Policy reports may be able to leak information via redirect behavior .
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.4Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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
1.73%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.73% on 18-09-2026
18-09-202618-10-2026
EPSS score1.73%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apple7 products
- ios and ipados≥ unspecified, < 15.1 | ≥ unspecified, < 14.8
- ipad_os< 14.8.1
- ipados15.0
- iphone_os< 14.8.1 | 15.0
- macos≥ unspecified, < 12.0 | ≥ unspecified, < 8.1 | ≥ unspecified, < 15.1 | < 12.0.1
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 · 14 products
References
10 links- support.apple.com/en-us/HT212869X Refsource MISC
- support.apple.com/en-us/HT212867X Refsource MISC
- support.apple.com/en-us/HT212868X Refsource MISC
- support.apple.com/en-us/HT212874X Refsource MISC
- support.apple.com/en-us/HT212876X Refsource MISC
