# CVE-2026-114558: OriginLab Origin Viewer out-of-bounds write in OPJU file parsing

Source: https://junglewise.ai/threats/cve-2026-114558-originlab-origin-viewer-opju-file-parsing-out-of-bounds-write  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-114558 · Severity: high · CVSS 7.8 · Published 2026-11-12

OriginLab Origin Viewer is a document and data visualization application used to open and view research and analysis files. This vulnerability in OPJU file parsing allows an attacker to execute arbitrary code on a user's system by tricking them into opening a malicious file or visiting a malicious webpage. Successful exploitation grants the attacker complete control over the affected computer.

Technologies: [OriginLab Origin Viewer](https://junglewise.ai/threats/technologies/origin-viewer). Vendors: [OriginLab](https://junglewise.ai/threats/vendors/originlab).

## Quick answers

**Is CVE-2026-114558 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-114558 being exploited in the wild.

**How severe is CVE-2026-114558?** High severity, with a CVSS score of 7.8, published 12 November 2026.

**Which products and versions are affected?** OriginLab Origin Viewer.

**Is there a fix for CVE-2026-114558?** A patch was published on 2026-11-06: Coordinated public release; vendor issued update Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-114558 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-114558?** Check whether you run OriginLab Origin Viewer. 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 exists in the OPJU file format parser due to insufficient validation of user-supplied data. The flaw allows an attacker to write past the end of an allocated buffer, enabling arbitrary code execution in the process context. User interaction is required: the victim must open a malicious OPJU file or visit a compromised webpage that triggers the parser.

## Affected products

- OriginLab Origin Viewer

## Timeline

- 2026-05-21: disclosed: Vulnerability reported to vendor
- 2026-11-06: patched: Coordinated public release; vendor issued update

## References

- [https://docs.originlab.com/cve/CVE-2026-114558](https://docs.originlab.com/cve/CVE-2026-114558)
- [https://www.zerodayinitiative.com/advisories/ZDI-26-886/](https://www.zerodayinitiative.com/advisories/ZDI-26-886/)

## Related threats

- [OriginLab Origin Viewer OGWU file parsing heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-114569-originlab-origin-viewer-ogwu-file-parsing-heap-based-buffer)
- [OriginLab Origin Viewer heap buffer overflow in OPJ parsing](https://junglewise.ai/threats/cve-2026-114568-originlab-origin-viewer-opj-file-parsing-heap-based-buffer)
- [OriginLab Origin Viewer out-of-bounds write in OGWU file parsing](https://junglewise.ai/threats/cve-2026-114567-originlab-origin-viewer-ogwu-file-parsing-out-of-bounds-write)
- [OriginLab Origin Viewer memory corruption in OGM file parsing](https://junglewise.ai/threats/cve-2026-114566-originlab-origin-viewer-ogm-file-parsing-memory-corruption)
- [OriginLab Origin Viewer out-of-bounds write in OGG parsing](https://junglewise.ai/threats/cve-2026-114565-originlab-origin-viewer-ogg-file-parsing-out-of-bounds-write)