# CVE-2026-47314: Samsung Escargot out-of-bounds write in JavaScript engine

Source: https://junglewise.ai/threats/cve-2026-47314-samsung-escargot-out-of-bounds-write-in-javascript-engine  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-19. Updated: 2026-05-19  
License: CC BY 4.0 with a link back

CVE-2026-47314 · Severity: high · CVSS 7.8 · Published 2026-05-19

Samsung Escargot, an open-source JavaScript engine often used in smart TVs and appliances, contains a memory management flaw. If a user is tricked into running a malicious script or opening a specially crafted file, an attacker could potentially crash the application or execute unauthorized code. This could lead to a loss of device control or the exposure of sensitive information stored on the device.

Technologies: [Samsung Escargot](https://junglewise.ai/threats/technologies/escargot). Vendors: [Samsung](https://junglewise.ai/threats/vendors/samsung).

## Quick answers

**Is CVE-2026-47314 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47314 being exploited in the wild.

**How severe is CVE-2026-47314?** High severity, with a CVSS score of 7.8, published 19 May 2026.

**Which products and versions are affected?** Samsung Escargot 590345cc6258317c5da850d846ce6baaf2afc2d3.

**Is there a fix for CVE-2026-47314?** A patch was published on 2026-05-14: Fix merged into master branch Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-47314 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-47314?** Check whether you run Samsung Escargot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An out-of-bounds (OOB) write vulnerability exists in Samsung's Escargot JavaScript engine (specifically affecting commit 590345c). The flaw is categorized as CWE-787 and stems from improper bounds checking or pointer validation during memory operations, including issues identified in BuiltinTypedArray and JSON processing. An attacker can exploit this by providing malicious JavaScript content that triggers an overflow, leading to memory corruption. While the attack vector is local, it requires minimal privileges but does necessitate user interaction (UI:R), such as a user visiting a malicious site or executing a script. Successful exploitation can result in a complete compromise of confidentiality, integrity, and availability (C/I/A). A fix has been merged into the master branch via pull request #1565.

## Affected products

- Samsung Escargot 590345cc6258317c5da850d846ce6baaf2afc2d3

## Timeline

- 2026-04-28: other: Initial fix pull request submitted on GitHub
- 2026-05-14: patched: Fix merged into master branch
- 2026-05-19: advisory: CVE published by Samsung TV & Appliance CNA

## References

- [https://github.com/Samsung/escargot/pull/1565](https://github.com/Samsung/escargot/pull/1565)

## Related threats

- [Samsung Escargot use-after-free in string buffer access](https://junglewise.ai/threats/cve-2026-124684-use-after-free-vulnerability-in-samsung-open-source-escargot)
- [Samsung escargot out-of-bounds write in code cache](https://junglewise.ai/threats/cve-2026-118435-out-of-bounds-write-vulnerability-in-samsung-open-source)
- [Samsung Escargot integer overflow in bytecode cache](https://junglewise.ai/threats/cve-2026-92259-samsung-escargot-integer-overflow-in-bytecode-cache)
- [Samsung Escargot out-of-bounds write in class initialization](https://junglewise.ai/threats/cve-2026-86315-samsung-escargot-out-of-bounds-write-in-class-initialization)
- [Samsung Escargot out-of-bounds read and reachable assertion](https://junglewise.ai/threats/cve-2026-58307-samsung-escargot-out-of-bounds-read-and-reachable-assertion)