# CVE-2026-9779: ATEN Unizon remote code execution via improper signature verification

Source: https://junglewise.ai/threats/cve-2026-9779-aten-unizon-remote-code-execution-via-improper-signature  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-24. Updated: 2026-06-24  
License: CC BY 4.0 with a link back

CVE-2026-9779 · Severity: high · CVSS 7.2 · Published 2026-06-24

ATEN Unizon, a centralized management platform for AV and IT equipment, contains a security flaw in how it handles software updates. An attacker with administrative credentials can bypass security checks to upload a malicious update package. If successful, the attacker can take full control of the server, potentially leading to data theft or complete service disruption.

Technologies: [ATEN Unizon](https://junglewise.ai/threats/technologies/unizon). Vendors: [ATEN](https://junglewise.ai/threats/vendors/aten).

## Quick answers

**Is CVE-2026-9779 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-9779 being exploited in the wild.

**How severe is CVE-2026-9779?** High severity, with a CVSS score of 7.2, published 24 June 2026.

**Which products and versions are affected?** ATEN Unizon 2.6.253.001.

**Is there a fix for CVE-2026-9779?** A patch was published on 2026-04-15: Fixed version V2.7.264.001 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-9779 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-9779?** Check whether you run ATEN Unizon 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 remote code execution vulnerability exists in ATEN Unizon's 'updateWar' method within the 'doCryptoHugeFileToFile' function. The application fails to properly verify cryptographic signatures when processing update packages via the 'rest/system/information' endpoint. Specifically, the system utilizes a hard-coded secret for encryption/decryption, allowing an attacker with high-level (administrative) privileges to craft and encrypt a malicious WAR file. Upon processing this file, the application executes the payload in the context of the SYSTEM user. This vulnerability is addressed in firmware version V2.7.264.001.

## Affected products

- ATEN Unizon 2.6.253.001

## Timeline

- 2026-03-13: disclosed: Vulnerability reported to vendor
- 2026-04-15: patched: Fixed version V2.7.264.001 released
- 2026-06-24: advisory: Coordinated public release of advisory

## References

- [https://www.aten.com/global/en/supportcenter/info/security-advisory/32/](https://www.aten.com/global/en/supportcenter/info/security-advisory/32/)
- [https://www.zerodayinitiative.com/advisories/ZDI-26-383/](https://www.zerodayinitiative.com/advisories/ZDI-26-383/)

## Related threats

- [ATEN Unizon missing authentication in RpcProvider](https://junglewise.ai/threats/cve-2026-5057-aten-unizon-missing-authentication-in-rpcprovider)
- [ATEN Unizon directory traversal remote code execution in ImportDeviceList](https://junglewise.ai/threats/cve-2026-9778-aten-unizon-directory-traversal-remote-code-execution-in)
- [ATEN Unizon directory traversal in restoreDB method](https://junglewise.ai/threats/cve-2026-9777-aten-unizon-directory-traversal-in-restoredb-method)
- [ATEN Unizon directory traversal in writeFileToHttpServletResponse](https://junglewise.ai/threats/cve-2026-9776-aten-unizon-directory-traversal-in-writefiletohttpservletresponse)
- [ATEN Unizon directory traversal in uploadSSL](https://junglewise.ai/threats/cve-2026-9775-aten-unizon-directory-traversal-in-uploadssl)