CVE-2026-8915Network attack vector

Memory corruption via missing resizable-buffer length check

Published May 28, 2026 · Updated May 28, 2026

Out-of-bounds write in Samsung Escargot allows attackers to corrupt engine memory through crafted JavaScript ArrayBuffer transfers. In BuiltinArrayBuffer.cpp, ArrayBuffer.prototype.transfer accepted a new byte length above a resizable buffer's maxByteLength without throwing a RangeError. The CNA identifies revision 36f5fb58366a67b713c02f6fd985e924fcc09e31 as affected, while the upstream pull request shows that revision merging the bounds check; exposure requires code predating that check and execution of attacker-controlled JavaScript with user interaction.

CVSS severity8.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Samsung Escargot allows attackers to corrupt engine memory through crafted JavaScript ArrayBuffer transfers. In BuiltinArrayBuffer.cpp, ArrayBuffer.prototype.transfer accepted a new byte length above a resizable buffer's maxByteLength without throwing a RangeError. The CNA identifies revision 36f5fb58366a67b713c02f6fd985e924fcc09e31 as affected, while the upstream pull request shows that revision merging the bounds check; exposure requires code predating that check and execution of attacker-controlled JavaScript with user interaction.

The record

CVE
CVE-2026-8915
Published
May 28, 2026
Updated
May 28, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Escargot
Classifications
CWE-787, CAPEC-100, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 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.

  1. Affected versionversion=36f5fb58366a67b713c02f6fd985e924fcc09e31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Escargotversion=36f5fb58366a67b713c02f6fd985e924fcc09e31

Published CVSS scores

8.8Samsung TV & ApplianceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CAPEC-100Overflow Buffers
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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