9.3

CVE-2019-8523: apple icloud Out-of-bounds Write

CVSS: 9.3v2.0HighModified
AliasesUBUNTU-CVE-2019-8523DEBIAN-CVE-2019-8523
Published 18-12-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-8523 is a high (CVSS 9.3) Out-of-bounds Write vulnerability in apple icloud. EPSS estimates a 2.17% chance of exploitation in the next 30 days, higher than 82% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
2.17%
0%100%
Low · +0.12 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
OPENSUSE-SU-2019:1374-1RHBA-2019:2261RHSA-2019:3553SUSE-SU-2019:1137-1USN-3948-1

Timeline

  1. 18-12-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.17%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

+0.12 pp

From 2.05% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.17%

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

Apple8 products
Ubuntu4 products
  • qtwebkit-opensource-srcAll versions (No fix recorded)
  • qtwebkit-sourceAll versions (No fix recorded)
  • webkit2gtkAll versions (No fix recorded) | < 2.24.1-0ubuntu0.18.04.1
  • webkitgtkAll versions (No fix recorded)
Debian1 product
  • webkit2gtk< 2.24.1-1

3 vendors · 13 products

References

10 links