# CVE-2026-33271: Acronis True Image local privilege escalation via insecure folder permissions

Source: https://junglewise.ai/threats/cve-2026-33271-acronis-true-image-local-privilege-escalation-via-insecure-folder  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-02. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-33271 · Severity: medium · CVSS 6.7 · Published 2026-04-02

Acronis True Image is a backup and recovery solution used to protect data on Windows computers. A security flaw in the software's folder permissions could allow a person with limited access to the computer to gain full administrative control. This could lead to unauthorized access to sensitive files, system-wide changes, or the disruption of backup operations.

Technologies: [Acronis True Image](https://junglewise.ai/threats/technologies/true-image). Vendors: [Acronis](https://junglewise.ai/threats/vendors/acronis).

## Quick answers

**Is CVE-2026-33271 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33271 being exploited in the wild.

**How severe is CVE-2026-33271?** Medium severity, with a CVSS score of 6.7, published 2 April 2026.

**Which products and versions are affected?** Acronis True Image (Windows) before build 42902.

**Is there a fix for CVE-2026-33271?** 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-2026-33271 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-33271?** Check whether you run Acronis True Image or Acronis True Image (Windows) 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 local privilege escalation vulnerability exists in Acronis True Image for Windows due to incorrect permission assignment for a critical resource (CWE-732). The root cause is insecure folder permissions that allow a low-privileged user to modify files or directories used by the application. An attacker with local access and low privileges can exploit this flaw to execute code with higher privileges, potentially gaining full system access. The exploit requires specific conditions (high complexity) and user interaction. The issue is resolved in Acronis True Image build 42902.

## Affected products

- Acronis True Image (Windows) before build 42902

## Timeline

- 2026-04-02: disclosed
- 2026-04-02: advisory

## References

- [https://security-advisory.acronis.com/advisories/SEC-9108](https://security-advisory.acronis.com/advisories/SEC-9108)

## Related threats

- [Acronis True Image local privilege escalation via environment variables](https://junglewise.ai/threats/cve-2026-33092-acronis-true-image-local-privilege-escalation-via-environment)
- [Acronis True Image DLL hijacking privilege escalation](https://junglewise.ai/threats/cve-2026-28728-acronis-true-image-dll-hijacking-privilege-escalation)
- [Acronis True Image DLL hijacking privilege escalation](https://junglewise.ai/threats/cve-2026-27774-acronis-true-image-dll-hijacking-privilege-escalation)