# CVE-2015-5119: Adobe Flash Player Use-After-Free Vulnerability

Source: https://junglewise.ai/threats/cve-2015-5119-adobe-flash-player-use-after-free-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-03. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2015-5119 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-03-03

A use-after-free vulnerability exists in the ByteArray class within the ActionScript 3 implementation of Adobe Flash Player. Remote attackers can exploit this by using crafted Flash content that overrides the valueOf function, leading to arbitrary code execution or denial of service.

Technologies: [Adobe AIR](https://junglewise.ai/threats/technologies/air), [Adobe Flash Player](https://junglewise.ai/threats/technologies/flash-player). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2015-5119 exploited in the wild?** Yes. CVE-2015-5119 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.

**How severe is CVE-2015-5119?** Critical severity, with a CVSS score of 9.8, published 3 March 2022.

**Which products and versions are affected?** Adobe Flash Player 13.x through 13.0.0.296 (Windows/OS X); Adobe Flash Player 14.x through 18.0.0.194 (Windows/OS X); Adobe Flash Player 11.x through 11.2.202.468 (Linux).

**Is there a fix for CVE-2015-5119?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2015-5119 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2015-5119?** Check whether you run Adobe AIR or Adobe Flash Player. 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.

## Affected products

- Adobe Flash Player 13.x through 13.0.0.296 (Windows/OS X)
- Adobe Flash Player 14.x through 18.0.0.194 (Windows/OS X)
- Adobe Flash Player 11.x through 11.2.202.468 (Linux)

## Timeline

- 2015-07: exploited: Exploited in the wild as part of the Hacking Team leak.
- 2022-03-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.

## Related threats

- [Adobe Acrobat use-after-free in PDF parsing](https://junglewise.ai/threats/cve-2020-9715-adobe-acrobat-use-after-free-in-pdf-parsing)
- [Adobe Acrobat and Reader prototype pollution in JavaScript engine](https://junglewise.ai/threats/cve-2026-34621-adobe-acrobat-and-reader-prototype-pollution-in-javascript-engine)
- [Adobe Flash Player Incorrect Default Permissions Vulnerability](https://junglewise.ai/threats/cve-2013-0643-adobe-flash-player-incorrect-default-permissions-vulnerability)
- [Adobe Flash Player Integer Underflow Vulnerablity](https://junglewise.ai/threats/cve-2014-0497-adobe-flash-player-integer-underflow-vulnerablity)
- [Adobe Flash Player Double Free Vulnerablity](https://junglewise.ai/threats/cve-2014-0502-adobe-flash-player-double-free-vulnerablity)