CVE-2020-9803: apple icloud Improper Input Validation
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2020-9803DEBIAN-CVE-2020-9803
Published 09-06-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-9803 is a high (CVSS 8.8) Improper Input Validation vulnerability in apple icloud. EPSS estimates a 1.80% chance of exploitation in the next 30 days, higher than 78.1% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.80%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 14 · Related 10Timeline
- 09-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. Processing maliciously crafted web content may lead to arbitrary code execution.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.80%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
+0.01 pp
From 1.79% on 19-09-2026
19-09-202619-10-2026
EPSS score1.80%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Apple11 products
- icloud< 7.19 | ≥ 11.0, < 11.2
- icloud for windows≥ unspecified, < iCloud for Windows 11.2
- icloud for windows (legacy)≥ unspecified, < iCloud for Windows 7.19
- ios≥ unspecified, < iOS 13.5 and iPadOS 13.5
- ipados< 13.5
Ubuntu4 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtkAll versions (No fix recorded) | < 2.28.3-0ubuntu0.18.04.1 | < 2.28.3-0ubuntu0.20.04.1
- webkitgtkAll versions (No fix recorded)
Debian2 products
- webkit2gtk< 2.28.3-1
- wpewebkit< 2.28.3-1
3 vendors · 17 products
