CVE-2026-43745: An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing malici

mediumCVSS 6.5CVE-2026-43745

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 6.5
Published: 2026-06-29
Last updated: 2026-06-30
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-43745

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-437450.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-43745	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownApple Products Multiple Vulnerabilitieshkcert
unknownNCSC-2026-0215 [1.00] [M/H] Vulnerabilities fixed in Apple iOS and iPadOSncsc-nl
unknownNCSC-2026-0214 [1.00] [M/H] Vulnerabilities fixed in Apple MacOSncsc-nl
unknownMultiple vulnerabilities in Apple products (June 30, 2026)cert-fr-avis

Recent advisories for An out-of-bounds write

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-55233: OpenResty is a high performance web platform. From 1.29.2.1 to before 1.29.2.5, an out-of-boun…nvd · 2026-07-10
highCVE-2026-55687: ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. Versions 6.0.1, 5.5.4…nvd · 2026-07-10
unknownCVE-2026-21057: Improper input validation in Samsung Pass prior to version 5.2.10.3 allows local privileged at…nvd · 2026-07-10
unknownCVE-2026-21049: Out-of-bounds write in libpadm.so library prior to SMR Jul-2026 Release 1 allows local attacke…nvd · 2026-07-10
unknownCVE-2026-21048: Out-of-bounds write in parsing DNG format in libimagecodec.media.quram.so prior to SMR Jul-202…nvd · 2026-07-10
unknownCVE-2026-21045: Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-20…nvd · 2026-07-10