Out-of-bounds write via font integer overflow
Published Jun 30, 2026 · Updated Jun 30, 2026
Integer overflow in Google Chrome's Fonts component before 150.0.7871.47 allows remote attackers to write outside a memory buffer. A crafted HTML page triggers overflow during font processing, causing an out-of-bounds write; Google has not disclosed the affected calculation or function. Exploitation requires a user to load attacker-controlled content, and the published record bounds the direct result to memory corruption rather than confirmed code execution.
Summary
What happened
Integer overflow in Google Chrome's Fonts component before 150.0.7871.47 allows remote attackers to write outside a memory buffer. A crafted HTML page triggers overflow during font processing, causing an out-of-bounds write; Google has not disclosed the affected calculation or function. Exploitation requires a user to load attacker-controlled content, and the published record bounds the direct result to memory corruption rather than confirmed code execution.
The record
- CVE
- CVE-2026-13938
- Published
- Jun 30, 2026
- Updated
- Jun 30, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-472, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 30, 2026CVE publishedPublication date reported by the CVE source.
- Jun 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=150.0.7871.47 <150.0.7871.47
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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