CVE-2026-5273

MEDIUMNVD 6.36.3—Trending — 4 sources updated this week

6.3

Use after free in CSS in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS v3: 6.3
EG Score: 6.3(medium)
EPSS: 13.3%
KEV: Not listed

Published

April 1, 2026

Last Modified

April 1, 2026

References (2)

chrome-cve-admin@googlehttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_31.html
chrome-cve-admin@googlehttps://issues.chromium.org/issues/493952652

Weakness Classification(1)

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

CWE-416Use After Free

All Vendor Advisories

(1)

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.

Microsoft MSRCCVE-2026-52732026-04-03
Chromium: CVE-2026-5273 Use after free in CSS

Frequently asked(5)

What is CVE-2026-5273?

CVE-2026-5273 is a medium vulnerability published on April 1, 2026. Use after free in CSS in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

When was CVE-2026-5273 disclosed?

CVE-2026-5273 was first published in the National Vulnerability Database on April 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-5273 actively exploited?

CVE-2026-5273 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-5273?

CVE-2026-5273 has a CVSS v3 base score of 6.3 (NVD).

How do I remediate CVE-2026-5273?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5273, 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

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CVE-2026-5273

Published

Last Modified

References (2)

Weakness Classification(1)

All Vendor Advisories

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-5273?

Same vendor

Same CWE

CVE-2026-5273

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

All Vendor Advisories

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-5273?

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References (2)

Frequently asked(5)

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