# CVE-2026-47310: Samsung Escargot use after free in JavaScript engine

Source: https://junglewise.ai/threats/cve-2026-47310-samsung-escargot-use-after-free-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-2026-47310 · Severity: high · CVSS 7.8 · Published 2026-05-19

A security vulnerability exists in Samsung's Escargot, an open-source JavaScript engine often used in smart TVs and appliances. This flaw could allow an attacker to manipulate system memory, potentially leading to unauthorized data access or system crashes. To exploit this, an attacker would typically need to trick a user into running a malicious script or opening a specially crafted file.

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

## Quick answers

**Is CVE-2026-47310 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47310 being exploited in the wild.

**How severe is CVE-2026-47310?** 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-2026-47310?** 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-2026-47310 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-47310?** 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

A use-after-free (UAF) vulnerability exists in the Samsung Escargot JavaScript engine (specifically identified in commit 590345c). The flaw stems from improper memory management during pointer operations, which can be triggered during edge cases such as nested eval calls or specific error handling routines. An attacker can exploit this by providing malicious JavaScript that triggers the UAF condition, leading to pointer manipulation. This can result in a crash (denial of service) or potentially arbitrary code execution with the privileges of the application using the engine. The issue was addressed in pull request #1565.

## Affected products

- Samsung Escargot 590345cc6258317c5da850d846ce6baaf2afc2d3

## Timeline

- 2026-04-28: other: Fix initially proposed in pull request
- 2026-05-14: patched: Fix merged into master branch
- 2026-05-19: disclosed: CVE published to NVD

## 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)