CVE-2026-47312

Engine crash via stale finalizer source pointer

Published May 19, 2026 · Updated May 19, 2026

Invalid pointer release in Samsung Escargot 590345cc6258317c5da850d846ce6baaf2afc2d3 allows local users to crash the engine. FinalizationRegistryObject finalizers can retain a stale source pointer because garbage-collection finalizers are unordered, then access the collected registry through that invalid pointer. Exploitation requires user interaction with crafted JavaScript and interrupts only the affected engine process.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Invalid pointer release in Samsung Escargot 590345cc6258317c5da850d846ce6baaf2afc2d3 allows local users to crash the engine. FinalizationRegistryObject finalizers can retain a stale source pointer because garbage-collection finalizers are unordered, then access the collected registry through that invalid pointer. Exploitation requires user interaction with crafted JavaScript and interrupts only the affected engine process.

The record

CVE
CVE-2026-47312
Published
May 19, 2026
Updated
May 19, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Escargot
Classifications
CWE-763, CAPEC-123, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2026CVE publishedPublication date reported by the CVE source.
  2. May 19, 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=590345cc6258317c5da850d846ce6baaf2afc2d3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Escargotversion=590345cc6258317c5da850d846ce6baaf2afc2d3

Published CVSS scores

5.5Samsung TV & ApplianceCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-763Release of Invalid Pointer or Reference
CAPEC-123Buffer Manipulation
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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