# CVE-2026-12602: Aruba ArubaSign privilege escalation via incorrect default permissions

Source: https://junglewise.ai/threats/cve-2026-12602-aruba-arubasign-privilege-escalation-via-incorrect-default  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-22. Updated: 2026-06-22  
License: CC BY 4.0 with a link back

CVE-2026-12602 · Severity: info · CVSS 8.8 · Published 2026-06-22

ArubaSign, a desktop application used for digital signing and document verification, contains a security flaw in its installation process. This flaw allows any user on a computer to replace the application's core files with malicious software. If an administrator subsequently runs the tampered application, the attacker could gain full control over the entire system and its data.

Vendors: [Aruba](https://junglewise.ai/threats/vendors/aruba).

## Quick answers

**Is CVE-2026-12602 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-12602 being exploited in the wild.

**How severe is CVE-2026-12602?** Informational severity, with a CVSS score of 8.8, published 22 June 2026.

**Which products and versions are affected?** ArubaSign prior to v4.6.6.

**Is there a fix for CVE-2026-12602?** 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-2026-12602 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-12602?** Check whether you run ArubaSign 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 vulnerability classified as CWE-276 (Incorrect Default Permissions) exists in ArubaSign versions prior to v4.6.6. During installation, the application assigns excessive write permissions to the 'Everyone' group for the main executable and other program files located in C:\Program Files. A local, unprivileged attacker can exploit this by replacing legitimate binaries or components with malicious code. If the replaced file is later executed by a user with higher privileges (such as an Administrator or the SYSTEM account), the attacker can achieve arbitrary code execution with elevated privileges, leading to a full system compromise. Users should update to version 4.6.6 or later to resolve this issue.

## Affected products

- Aruba ArubaSign prior to v4.6.6

## Timeline

- 2026-06-22: disclosed
- 2026-06-22: advisory

## References

- [https://www.incibe.es/en/incibe-cert/notices/aviso/incorrect-permissions-arubasign-aruba](https://www.incibe.es/en/incibe-cert/notices/aviso/incorrect-permissions-arubasign-aruba)