Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Remote crafted page with no privileges but required user interaction (UI:R); use-after-free yields full code execution in the renderer, so C/I/A:H with scope Unchanged as impact is sandbox-confined.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
7DescriptionCVE.org
Use after free in Fonts in Google Chrome on on Windows prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Articles & Coverage 1
AnalysisAI
Use-after-free in Chrome's font handling on Windows allows a remote attacker to execute arbitrary code inside the renderer sandbox when a victim opens a crafted HTML page; the flaw affects Google Chrome versions prior to 155.0.8059.39. Exploitation requires user interaction (UI:R) - the victim must load attacker-controlled content - and there are no authentication prerequisites (PR:N), but the resulting code execution is confined to the Chrome sandbox, so host-level compromise would require a second, independent sandbox-escape bug. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a victim running Google Chrome on Windows at a version prior to 155.0.8059.39 to actively open attacker-controlled web content (crafted HTML page with a malicious font), consistent with UI:R - there is no self-triggering or authenticated prerequisite (PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals conflict and must be weighed carefully. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Google Chrome on Windows to version 155.0.8059.39 or later; this is the vendor-released fixed version documented in the stable channel release notes at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html, with the underlying issue tracked at https://issues.chromium.org/issues/523699645. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, confirm which endpoints run Google Chrome on Windows and identify those below version 155.0.8059.39, then begin pushing the update to the highest-risk populations such as executives, finance, and users who routinely browse external or untrusted sites. …
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-93749
GHSA-f7ff-3jmx-4fmh