7.1

CVE-2020-36521: apple icloud Out-of-bounds Read

CVSS: 7.1v3.1HighModified
Published 23-09-2022Last modified 22-05-2025
Open JSON

Vulnerability summary

CVE-2020-36521 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in apple icloud. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.5% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 23-09-2022
    PublishedVulnerability first disclosed.
  2. 22-05-2025
    Last modifiedVulnerability information updated.

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iCloud for Windows 11.4, iOS 14.0 and iPadOS 14.0, watchOS 7.0, tvOS 14.0, iCloud for Windows 7.21, iTunes for Windows 12.10.9. Processing a maliciously crafted tiff file may lead to a denial-of-service or potentially disclose memory contents.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

0.00 pp

From 0.44% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple10 products

1 vendor · 10 products

References

6 links