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Fencer Vulns
high 8.6

CVE-2023-32409 kev in the critical feed json

The issue was addressed with improved bounds checks.

published 2023-06-23 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36653

cvss
8.6
version 3.1, CNA
cisa kev
Exploited
added 2023-05-22
epss
16.5%
EPSS 16.5% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

The issue was addressed with improved bounds checks. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.8 and iPadOS 15.7.8, Safari 16.5, iOS 16.5 and iPadOS 16.5. A remote attacker may be able to break out of Web Content sandbox. Apple is aware of a report that this issue may have been actively exploited.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • Apple macOS 13.4
  • Apple Safari 16.5
  • Apple watchOS 9.5
  • Apple iOS and iPadOS 15.7, 16.5
  • Apple tvOS 16.5
  • wpewebkit Debian 14, Debian 13 2.42.0-1
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.42.0-1

debian advisories DEBIAN-CVE-2023-32409

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-32409 updated cvss 8.8

webkitgtk: remote attacker may be able to break out of the Web Content sandbox

  • Red Hat Enterprise Linux 6 webkitgtk
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 webkitgtk3, webkitgtk4, libwebkit2gtk, webkitgtk4-jsc, webkitgtk4-plugin-process-gtk2 Red Hat Enterprise Linux 8 webkit2gtk3, webkit2gtk3-jsc, webkit2gtk3-plugin-process-gtk2 Red Hat Enterprise Linux 9 webkit2gtk3, webkit2gtk3-jsc
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. 0-day patched (Project Zero)
  2. Added to CISA KEV
  3. CISA patch deadline
  4. Published
  5. CISA SSVC: exploitation active

Known exploited

Added
3 y ago
Patch by
2023-06-12 (3 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Apple, Multiple Products
CISA name
Apple Multiple Products WebKit Sandbox Escape Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Patched
2023-05-18
Details
project zero tracker

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

16.53% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
NVD 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Affected products

  • Apple macOS
  • Apple Safari
  • Apple watchOS
  • Apple iOS and iPadOS
  • Apple tvOS

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.