8.8

CVE-2023-32373: Apple Multiple Products WebKit Use-After-Free Vulnerability

CVSS: 8.8v3.1HighKEVAnalyzed
AliasesUBUNTU-CVE-2023-32373DEBIAN-CVE-2023-32373
Published 23-06-2023Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2023-32373 is a high (CVSS 8.8) Use After Free vulnerability in Apple Multiple Products. It is known to be exploited: CISA lists it, first on 22-05-2023. EPSS estimates a 12.17% chance of exploitation in the next 30 days, higher than 96.1% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
12.17%
0%100%
Medium · 0.00 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 5
DSA-5427-1MGASA-2023-0197RHSA-2023:3432RHSA-2023:3433RHSA-2025:10364SUSE-SU-2023:2606-1

Timeline

  1. 22-05-2023
    Added to CISA KEVApple Multiple Products WebKit Use-After-Free Vulnerability
  2. 12-06-2023
    CISA remediation dueApply updates per vendor instructions.
  3. 23-06-2023
    PublishedVulnerability first disclosed.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

12.17%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

0.00 pp

From 12.17% on 18-09-2026

18-09-202618-10-2026
EPSS score
12.17%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
22-05-2023
Federal due date
12-06-2023

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2023-32373

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple7 products
  • ios and ipados≥ unspecified, < 15.7 | ≥ unspecified, < 16.5
  • ipados< 15.7.6 | ≥ 16.0, < 16.5
  • iphone_os≥ 15.0, < 15.7.6 | ≥ 16.0, < 16.5
  • macos≥ unspecified, < 13.4 | < 13.4
  • safari≥ unspecified, < 16.5 | < 16.5
Ubuntu5 products
  • qtwebkit-opensource-srcAll versions (No fix recorded)
  • qtwebkit-sourceAll versions (No fix recorded)
  • webkit2gtkAll versions (No fix recorded) | < 2.40.4-0ubuntu0.22.04.1
  • webkitgtkAll versions (No fix recorded)
  • wpewebkitAll versions (No fix recorded)
Debian2 products
  • webkit2gtk< 2.40.2-1~deb12u1 | < 2.40.2-1
  • wpewebkitAll versions (No fix recorded) | < 2.40.2-2
Redhat1 product
Webkitgtk1 product

5 vendors · 16 products

References

15 links
Show all 15 references