CVE-2026-124684
Received Received - Intake

Use After Free in Samsung Escargot Allows Pointer Manipulation

Publication date: 2026-11-09

Last updated on: 2026-11-09

Assigner: Samsung TV & Appliance

Description
Use after free vulnerability in Samsung Open Source Escargot allows Pointer Manipulation. This issue affects Escargot: before 8bc35b7b88f0f96c66a42aa965a1a710308b61d5.

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Meta Information

Published
2026-11-09
Last Modified
2026-11-09
Generated
2026-11-09
AI Q&A
2026-11-09
EPSS Evaluated
N/A
NVD
CVE-2026-124684
EUVD
EUVD-2026-119996

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
samsung escargot to 8bc35b7b88f0f96c66a42aa965a1a710308b61d5 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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Executive Summary

This vulnerability is a use-after-free issue in Samsung's Escargot JavaScript engine. It occurs in string buffers where backing buffers could be unloaded or compressed, leaving raw pointers unprotected. Methods like characters8() and characters16() returned temporary objects that were destroyed after extracting pointers, allowing callers to hold invalid pointers. The StringRef::stringBufferAccessData() API also risked heap-use-after-free if buffers were invalidated while held.

Detection Guidance

Detection requires code review or runtime analysis of Samsung Escargot usage. Check for crashes or memory corruption in JavaScript engine operations. Monitor logs for segmentation faults or heap-use-after-free errors. No direct network detection commands are provided.

Impact Analysis

An attacker could exploit this to execute arbitrary code or cause a denial of service by manipulating freed memory. Systems using vulnerable versions of Escargot may crash or become compromised if the engine processes malicious JavaScript.

Mitigation Strategies

Update Samsung Escargot to the fixed version (commit 8bc35b7b88f0f96c66a42aa965a1a710308b61d5). Avoid using deprecated methods like characters8() and characters16(). Ensure internal code uses bufferAccessData() and retains StringBufferAccessData objects.

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