NVD / CVE Program· CNA apple

CVE-2025-43529: A use-after-free issue was addressed with improved memory management.

Noroxi assessment

Priority: This week (action score 73/100)

CISA has confirmed exploitation in the wild (Dec 15, 2025). Remediation deadline for US federal agencies: Jan 5, 2026.
Probability of exploitation in the next 30 days: 25.6% (FIRST EPSS); higher than 97.9% of all records.
This probability rose by 17 points in the last 7 days.
Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
Fixed version: webkit2gtk3 (AlmaLinux:8) 2.50.4-1.el8_10; webkit2gtk3-devel (AlmaLinux:8) 2.50.4-1.el8_10; webkit2gtk3-jsc (AlmaLinux:8) 2.50.4-1.el8_10.

Don’t wait for the next maintenance window. Upgrade to webkit2gtk3 (AlmaLinux:8) 2.50.4-1.el8_10; webkit2gtk3-devel (AlmaLinux:8) 2.50.4-1.el8_10; webkit2gtk3-jsc (AlmaLinux:8) 2.50.4-1.el8_10 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 was also issued in response to this report.

HighCVSS 8.8 · v3.1KEVWeaponized Fix available

Published: Dec 17, 2025
Updated: Oct 7, 2026
EPSS: 25.6% · 97th percentile▲ 17
CWE: CWE-416

Report tools

JSON

Action score

This week

Don’t wait for the next maintenance window.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 8 / 30 · 25.6%

CISA SSVC decision

Exploitation: active
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Dec 15, 2025. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Jan 5, 2026.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
apple	safari	cpe:2.3:a:apple:safari
apple	ipados	cpe:2.3:o:apple:ipados
apple	iphone os	cpe:2.3:o:apple:iphone_os
apple	macos	cpe:2.3:o:apple:macos
apple	tvos	cpe:2.3:o:apple:tvos
apple	visionos	cpe:2.3:o:apple:visionos
apple	watchos	cpe:2.3:o:apple:watchos

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

apple ipadosbefore 18.7.3
apple ipados26.0 and later · before 26.2
apple iphone osbefore 18.7.3
apple iphone os26.0 and later · before 26.2
apple macos26.0 and later · before 26.2
apple safaribefore 26.2
apple tvosbefore 26.2
apple visionosbefore 26.2
apple watchosbefore 26.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apple). Independent of NVD's CPE analysis and usually ahead of it.

Apple iOS and iPadOS
- before 18.7.3affected
- before 26.2affected
Apple macOS
- before 26.2affected
Apple Safari
- before 26.2affected
Apple tvOS
- before 26.2affected
Apple visionOS
- before 26.2affected
Apple watchOS
- before 26.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
AlmaLinux:8	webkit2gtk3	before 2.50.4-1.el8_10	2.50.4-1.el8_10
AlmaLinux:8	webkit2gtk3-devel	before 2.50.4-1.el8_10	2.50.4-1.el8_10
AlmaLinux:8	webkit2gtk3-jsc	before 2.50.4-1.el8_10	2.50.4-1.el8_10
AlmaLinux:8	webkit2gtk3-jsc-devel	before 2.50.4-1.el8_10	2.50.4-1.el8_10
AlmaLinux:9	webkit2gtk3	before 2.50.4-1.el9_7	2.50.4-1.el9_7
AlmaLinux:9	webkit2gtk3-devel	before 2.50.4-1.el9_7	2.50.4-1.el9_7
AlmaLinux:9	webkit2gtk3-jsc	before 2.50.4-1.el9_7	2.50.4-1.el9_7
AlmaLinux:9	webkit2gtk3-jsc-devel	before 2.50.4-1.el9_7	2.50.4-1.el9_7
Debian:11	webkit2gtk	before 2.50.4-1~deb11u1	2.50.4-1~deb11u1
Debian:12	webkit2gtk	before 2.50.4-1~deb12u1	2.50.4-1~deb12u1
Debian:12	wpewebkit	from 0	—
Debian:13	webkit2gtk	before 2.50.4-1~deb13u1	2.50.4-1~deb13u1
Debian:14	webkit2gtk	before 2.50.4-1	2.50.4-1
Debian:14	wpewebkit	before 2.50.4-1	2.50.4-1
openSUSE:Leap 15.6	webkit2gtk3	before 2.50.4-150600.12.54.1	2.50.4-150600.12.54.1
openSUSE:Leap 15.6	webkit2gtk3-soup2	before 2.50.4-150600.12.54.1	2.50.4-150600.12.54.1
openSUSE:Leap 15.6	webkit2gtk4	before 2.50.4-150600.12.54.1	2.50.4-150600.12.54.1
Red Hat:enterprise_linux:8::appstream	webkit2gtk3	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-debuginfo	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-debugsource	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-devel	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-devel-debuginfo	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-jsc	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-jsc-debuginfo	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10

+96

Same product

apple: all records

Other highest-scoring records for the same primary product.

CVE-2023-28205A use after free issue was addressed with improved memory management.KEV
73This week
CVE-2023-32439A type confusion issue was addressed with improved checks.KEV
72This week
CVE-2023-32435A memory corruption issue was addressed with improved state management.KEV
72This week

Published before and after this one in the same product

← EarlierCVE-2025-46282Dec 17, 2025 · The issue was addressed with additional permissions checks.
22Monitor
← EarlierCVE-2025-43501Dec 17, 2025 · A buffer overflow issue was addressed with improved memory handling.
17Monitor
Later →CVE-2025-43531Dec 17, 2025 · A race condition was addressed with improved state handling.
12Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
almalinux:webkit2gtk3	2.50.4-1.el8_10 · AlmaLinux:8	Package registry (OSV)
almalinux:webkit2gtk3-devel	2.50.4-1.el8_10 · AlmaLinux:8	Package registry (OSV)
almalinux:webkit2gtk3-jsc	2.50.4-1.el8_10 · AlmaLinux:8	Package registry (OSV)
almalinux:webkit2gtk3-jsc-devel	2.50.4-1.el8_10 · AlmaLinux:8	Package registry (OSV)
debian:webkit2gtk	2.50.4-1~deb12u1 · Debian:12	Package registry (OSV)
debian:wpewebkit	2.50.4-1 · Debian:14	Package registry (OSV)
opensuse:webkit2gtk3	2.50.4-150600.12.54.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:webkit2gtk3-soup2	2.50.4-150600.12.54.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:webkit2gtk4	2.50.4-150600.12.54.1 · openSUSE:Leap 15.6	Package registry (OSV)
red hat:webkit2gtk3	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-debuginfo	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-debugsource	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-devel	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-devel-debuginfo	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-jsc	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-jsc-debuginfo	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-jsc-devel	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkit2gtk3-jsc-devel-debuginfo	0:2.50.4-1.el8_10 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:webkitgtk4	0:2.50.4-2.el7_9 · Red Hat:rhel_els:7	Package registry (OSV)
red hat:webkitgtk4-debuginfo	0:2.50.4-2.el7_9 · Red Hat:rhel_els:7	Package registry (OSV)
red hat:webkitgtk4-devel	0:2.50.4-2.el7_9 · Red Hat:rhel_els:7	Package registry (OSV)
rocky linux:webkit2gtk3	0:2.50.4-1.el8_10 · Rocky Linux:8	Package registry (OSV)
suse:webkit2gtk3	2.50.4-150400.4.134.2 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	Package registry (OSV)
suse:webkit2gtk3	2.50.4-150600.12.54.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP6	Package registry (OSV)
suse:webkit2gtk3-soup2	2.50.4-150400.4.134.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	Package registry (OSV)
suse:webkit2gtk3-soup2	2.50.4-150600.12.54.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6	Package registry (OSV)
suse:webkit2gtk4	2.50.4-150400.4.134.2 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	Package registry (OSV)
suse:webkit2gtk4	2.50.4-150600.12.54.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6	Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Proof-of-concept repository on GitHub ×7

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:87	2026-01-05
Proof-of-concept repository on GitHub	stars:114	2026-01-13
Proof-of-concept repository on GitHub	stars:1	2026-01-28
Proof-of-concept repository on GitHub	stars:1	2026-01-30
Proof-of-concept repository on GitHub	stars:18	2026-02-01
Proof-of-concept repository on GitHub	stars:1	2026-03-02
Proof-of-concept repository on GitHub	stars:109	2026-06-11

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

CISA KEVDec 15, 2025-3 d
PublishedDec 17, 2025
First PoCJan 5, 2026+18 d
TodayOct 28, 2026+315 d

EPSS, last 120 days+17% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2023-4300042 days apartA use-after-free issue was addressed with improved memory management.KEV
66This week
CVE-2026-43715194 days apartA use-after-free issue was addressed with improved memory management.
35Monitor
CVE-2026-43731194 days apartA use-after-free issue was addressed with improved memory management.
35Monitor
CVE-2026-64783222 days apartA use-after-free issue was addressed with improved memory management.
35Monitor
CVE-2023-42970250 days apartA use-after-free issue was addressed with improved memory management.
35Monitor
CVE-2026-112623313 days apartA use-after-free issue was addressed with improved memory management.
35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

Fix✗ → ✓Sep 28, 2026, 10:45 PM UTC

For records you follow, these changes also arrive as notifications. →

References

support.apple.com/en-us/125884

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records