CVE-2023-39434: apple ios and ipados Use After Free
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2023-39434DEBIAN-CVE-2023-39434
Published 26-09-2023Last modified 02-05-2025
Vulnerability summary
CVE-2023-39434 is a high (CVSS 8.8) Use After Free vulnerability in apple ios and ipados. EPSS estimates a 1.65% chance of exploitation in the next 30 days, higher than 76.1% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
1.65%
0%100%
Low · +0.14 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 26-09-2023PublishedVulnerability first disclosed.
- 02-05-2025Last modifiedVulnerability information updated.
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. Processing web content may lead to arbitrary code execution.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 4 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
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.65%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
+0.14 pp
From 1.51% on 20-09-2026
20-09-202620-10-2026
EPSS score1.65%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apple5 products
- ios and ipados≥ unspecified, < 17
- ipados< 17.0
- iphone_os< 17.0
- macos≥ unspecified, < 14 | < 14.0
- watchos≥ unspecified, < 10 | < 10.0
Ubuntu5 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtkAll versions (No fix recorded) | < 2.40.5-0ubuntu0.22.04.1
- webkitgtkAll versions (No fix recorded)
- wpewebkitAll versions (No fix recorded)
Debian2 products
- webkit2gtk< 2.40.5-1~deb12u1 | < 2.40.5-1
- wpewebkitAll versions (No fix recorded) | < 2.40.5-1
3 vendors · 12 products
