CVE-2025-43535· NVD / CVE Program· CNA apple

The issue was addressed with improved memory handling.

The issue was addressed with improved memory handling. 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, visionOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.

MediumCVSS 4.3 · v3.1—No exploit Fix available

Published: Dec 17, 2025
Updated: Oct 7, 2026
EPSS: 0.8% · 57th percentile
CWE: —

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Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.8%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

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	visionos	cpe:2.3:o:apple:visionos

Affected versions

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

apple ipados26.0 and later · before 26.2
apple ipadosbefore 18.7.3
apple iphone osbefore 18.7.3
apple iphone os26.0 and later · before 26.2
apple macosbefore 26.2
apple safaribefore 26.2
apple visionosbefore 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 visionOS
- 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	all versions	—
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
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
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-jsc-devel	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:8::appstream	webkit2gtk3-jsc-devel-debuginfo	before 0:2.50.4-1.el8_10	0:2.50.4-1.el8_10
Red Hat:enterprise_linux:9::appstream	webkit2gtk3	before 0:2.50.4-1.el9_7	0:2.50.4-1.el9_7

+92

Same product

apple: all records

Other highest-scoring records for the same primary product.

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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)
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-soup2	2.50.4-150400.4.134.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	Package registry (OSV)
suse:webkit2gtk4	2.50.4-150400.4.134.2 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

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.

No dated events beyond publication.

EPSS, last 120 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.

No nightly-computed relations.

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: none
Integrity: none
Availability: low · the service can be disrupted

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

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

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

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

All records

Noroxi analysis

No Noroxi analysis for this record yet

We use this product, ask for help

Data sources and verification

CNA: apple

CVE.org (CNA)Apr 2, 2026, 6:23 PM UTC
CISA ADPApr 2, 2026, 6:23 PM UTC
NVDOct 7, 2026, 11:10 AM UTC
FIRST EPSSOct 9, 2026, 12:00 AM UTC
OSV / GHSAOct 10, 2026, 3:22 AM UTC

Each line is when that source was last processed for this record.

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