CVE-2026-18003: Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium se

mediumCVSS 4.3CVE-2026-18003

Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 4.3
Published: 2026-07-30
Last updated: 2026-08-03
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-18003

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-2026-180030.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-18003	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownMultiples vulnérabilités dans Microsoft Edge (03 août 2026)cert-fr-avis
unknownCVE-2026-18003: Chromium: CVE-2026-18003 Inappropriate implementation in Chrome for iOSmsrc

Recent advisories for Inappropriate implementation in

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.

mediumCVE-2026-18018: Inappropriate implementation in Updater in Google Chrome on Windows prior to 151.0.7922.72 all…nvd · 2026-07-30
criticalCVE-2026-18015: Inappropriate implementation in Tint in Google Chrome on Mac prior to 151.0.7922.72 allowed a …nvd · 2026-07-30
mediumCVE-2026-18013: Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 …nvd · 2026-07-30
lowCVE-2026-18011: Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 …nvd · 2026-07-30
mediumCVE-2026-18010: Inappropriate implementation in Passwords in Google Chrome prior to 151.0.7922.72 allowed a re…nvd · 2026-07-30
mediumCVE-2026-18008: Inappropriate implementation in Settings in Google Chrome prior to 151.0.7922.72 allowed a rem…nvd · 2026-07-30