CVE-2025-43240

MEDIUMNVD 6.26.2—

6.2

A logic issue was addressed with improved checks. This issue is fixed in Safari 18.6, macOS Sequoia 15.6. A download's origin may be incorrectly associated.

CVSS v3: 6.2
EG Score: 6.2(medium)
EPSS: 49.4%
KEV: Not listed

Published

July 30, 2025

Last Modified

April 2, 2026

References (6)

product-security@applehttps://support.apple.com/en-us/124149
product-security@applehttps://support.apple.com/en-us/124152
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2025/Aug/0
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2025/Jul/32
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/08/02/1
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/08/msg00015.html

Patch Availability(11)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	webkit2gtk-driver (2.48.5-0ubuntu0.22.04.1) @ jammy	2026-05-21	ubuntu
redhat	webkitgtk4-0:2.48.5-1.el7_9	2025-09-15	redhat
redhat	webkit2gtk3-0:2.48.5-1.el8_2	2025-08-25	redhat
redhat	webkit2gtk3-0:2.48.5-1.el8_6	2025-08-25	redhat
redhat	webkit2gtk3-0:2.48.5-1.el8_8	2025-08-25	redhat
redhat	webkit2gtk3-0:2.48.5-1.el9_0	2025-08-25	redhat
redhat	webkit2gtk3-0:2.48.5-1.el9_4	2025-08-25	redhat
redhat	webkit2gtk3-0:2.48.5-1.el8_4	2025-08-25	redhat
redhat	webkit2gtk3-0:2.48.5-1.el9_2	2025-08-25	redhat
redhat	webkit2gtk3-0:2.48.5-1.el9_6	2025-08-13	redhat
redhat	webkit2gtk3-0:2.48.5-1.el8_10	2025-08-13	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-703

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 22:10 UTCOSV refresh
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2025-43240?

CVE-2025-43240 is a medium vulnerability published on July 30, 2025. A logic issue was addressed with improved checks. This issue is fixed in Safari 18.6, macOS Sequoia 15.6. A download's origin may be incorrectly associated.

When was CVE-2025-43240 disclosed?

CVE-2025-43240 was first published in the National Vulnerability Database on July 30, 2025, with the most recent update on April 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-43240 actively exploited?

CVE-2025-43240 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-43240?

CVE-2025-43240 has a CVSS v3 base score of 6.2 (NVD).

How do I remediate CVE-2025-43240?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-43240, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-43240

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