# CVE-2026-101179: Huawei HarmonyOS buffer overflow in file preview module

Source: https://junglewise.ai/threats/cve-2026-101179-buffer-overflow-vulnerability-in-the-file-preview-module-impact  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-02. Updated: 2026-11-02  
License: CC BY 4.0 with a link back

CVE-2026-101179 · Severity: medium · CVSS 4.7 · Published 2026-11-02

A buffer overflow vulnerability exists in Huawei's HarmonyOS file preview feature, which handles the display of document previews on phones, tablets, and PCs. Successful exploitation could crash the file preview service or cause other availability issues, disrupting users' ability to preview files on their devices.

Technologies: [Huawei Emui](https://junglewise.ai/threats/technologies/emui), [Huawei Harmonyos](https://junglewise.ai/threats/technologies/harmonyos). Vendors: [Huawei](https://junglewise.ai/threats/vendors/huawei).

## Quick answers

**Is CVE-2026-101179 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101179 being exploited in the wild.

**How severe is CVE-2026-101179?** Medium severity, with a CVSS score of 4.7, published 2 November 2026.

**Which products and versions are affected?** Huawei Emui Not listed for CVE-2026-101179 in reference materials; Huawei Harmonyos 7.0.0, 6.1.0.

**Is there a fix for CVE-2026-101179?** 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-2026-101179 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-101179?** Check whether you run Huawei Emui or Huawei Harmonyos 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 buffer overflow vulnerability in the file preview module of HarmonyOS can be triggered during the processing of certain file types. The vulnerability affects HarmonyOS 7.0.0 and 6.1.0, and exploitation may lead to denial of service affecting the availability of the file preview functionality. No privilege escalation or data exposure is indicated by the advisory.

## Affected products

- Huawei HarmonyOS 7.0.0, 6.1.0
- Huawei EMUI Not listed for CVE-2026-101179 in reference materials

## Timeline

- 2026-11-02: disclosed
- 2026-10-10: advisory: Huawei security bulletin published

## References

- [https://consumer.huawei.com/en/support/bulletin/2026/10/](https://consumer.huawei.com/en/support/bulletin/2026/10/)
- [https://consumer.huawei.com/en/support/bulletinlaptops/2026/10/](https://consumer.huawei.com/en/support/bulletinlaptops/2026/10/)

## Related threats

- [Huawei HarmonyOS/EMUI Bluetooth permission control vulnerability](https://junglewise.ai/threats/cve-2026-101184-permission-control-vulnerability-in-the-bluetooth-module-impact)
- [Huawei HarmonyOS autofill service permission control bypass](https://junglewise.ai/threats/cve-2026-101178-permission-control-vulnerability-in-the-autofill-service-module)
- [Huawei HarmonyOS DoS vulnerability in window module](https://junglewise.ai/threats/cve-2026-101186-dos-vulnerability-in-the-window-module-impact-successful)
- [Huawei HarmonyOS peripheral module out-of-bounds read](https://junglewise.ai/threats/cve-2026-101185-oob-read-vulnerability-in-the-peripheral-module-impact)
- [Huawei HarmonyOS use-after-free in location service module](https://junglewise.ai/threats/cve-2026-101183-uaf-vulnerability-in-the-location-service-module-impact)