Incorrect security UI in PictureInPicture in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-3942
MEDIUMPre-NVD 4.34.3—Trending — 5 sources updated this week
EchelonGraph scoreMEDIUM confidence
Score 4.3 from GitHub Security Advisory published 2026-03-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, ghsa
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity43% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 7%
- KEV
- Not listed
Published
March 11, 2026
Last Modified
June 17, 2026
References (2)
- chrome-cve-admin@googlehttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_10.html
- chrome-cve-admin@googlehttps://issues.chromium.org/issues/475238879
Vendor Advisories for CVE-2026-3942(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 14:13 UTCEPSS rescore
- 2026-07-27 12:52 UTCEG score recompute
- 2026-07-27 12:52 UTCVendor advisory
- 2026-07-27 12:52 UTCGHSA enrichment
- 2026-07-27 12:50 UTCOSV refresh
Frequently asked(5)
What is CVE-2026-3942?
CVE-2026-3942 is a medium vulnerability published on March 11, 2026. Incorrect security UI in PictureInPicture in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
When was CVE-2026-3942 disclosed?
CVE-2026-3942 was first published in the National Vulnerability Database on March 11, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3942 actively exploited?
CVE-2026-3942 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 92.6% of all scored CVEs.
What is the CVSS score of CVE-2026-3942?
CVE-2026-3942 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-3942?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3942, 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
Explore the affected products and dependency analysis for CVE-2026-3942
Is Your Infrastructure Affected by CVE-2026-3942?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.