# CVE-2026-27648: OpenHarmony remote code execution in pre-installed apps

Source: https://junglewise.ai/threats/cve-2026-27648-openharmony-remote-code-execution-in-pre-installed-apps  
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-2026-27648 · Severity: high · CVSS 8.8 · Published 2026-05-19

A vulnerability in the OpenHarmony operating system allows remote attackers to execute unauthorized code within pre-installed applications. OpenHarmony is an open-source operating system designed for smart devices and IoT hardware. If exploited, this could allow an attacker to take control of device functions, access sensitive user data, or disrupt the operation of the device.

Technologies: [OpenHarmony](https://junglewise.ai/threats/technologies/openharmony). Vendors: [OpenHarmony](https://junglewise.ai/threats/vendors/openharmony).

## Quick answers

**Is CVE-2026-27648 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27648 being exploited in the wild.

**How severe is CVE-2026-27648?** High severity, with a CVSS score of 8.8, published 19 May 2026.

**Which products and versions are affected?** OpenHarmony v6.0 and prior versions.

**Is there a fix for CVE-2026-27648?** 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-2026-27648 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-27648?** Check whether you run OpenHarmony 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 write vulnerability (CWE-787) exists in OpenHarmony v6.0 and earlier. The flaw allows a remote attacker with low privileges to achieve arbitrary code execution within the context of pre-installed applications. The attack vector is network-based and does not require user interaction, though it does require a low level of authentication. Successful exploitation results in a high impact on confidentiality, integrity, and availability. Users are advised to refer to the OpenHarmony security disclosure for April 2026 for patching information.

## Affected products

- OpenHarmony OpenHarmony v6.0 and prior versions

## Timeline

- 2026-05-19: disclosed
- 2026-05-19: advisory

## References

- [https://gitcode.com/openharmony/security/tree/master/zh/security-disclosure/2026/2026-04.md](https://gitcode.com/openharmony/security/tree/master/zh/security-disclosure/2026/2026-04.md)

## Related threats

- [OpenHarmony signal handler race condition causing DOS](https://junglewise.ai/threats/cve-2026-33565-openharmony-signal-handler-race-condition-causing-dos)
- [OpenHarmony denial of service via improper input validation](https://junglewise.ai/threats/cve-2026-28751-openharmony-denial-of-service-via-improper-input-validation)
- [OpenHarmony use-after-free arbitrary code execution](https://junglewise.ai/threats/cve-2026-28733-openharmony-use-after-free-arbitrary-code-execution)
- [OpenHarmony integer overflow denial of service](https://junglewise.ai/threats/cve-2026-27781-openharmony-integer-overflow-denial-of-service)
- [OpenHarmony signal handler race condition information leak](https://junglewise.ai/threats/cve-2026-27766-openharmony-signal-handler-race-condition-information-leak)