# CVE-2025-36591: Dell ECS and ObjectScale use of broken cryptographic algorithm

Source: https://junglewise.ai/threats/cve-2025-36591-dell-ecs-and-objectscale-use-of-broken-cryptographic-algorithm  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-16. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2025-36591 · Severity: medium · CVSS 4.4 · Published 2026-09-16

Dell ECS and ObjectScale are enterprise storage systems used to store and manage large volumes of data. These versions contain a weak cryptographic algorithm that could allow a local attacker with high privileges to expose sensitive information stored on the system, compromising data confidentiality.

Technologies: [Dell Elastic Cloud Storage](https://junglewise.ai/threats/technologies/elastic-cloud-storage), [Dell ObjectScale](https://junglewise.ai/threats/technologies/objectscale). Vendors: [Dell](https://junglewise.ai/threats/vendors/dell).

## Quick answers

**Is CVE-2025-36591 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-36591 being exploited in the wild.

**How severe is CVE-2025-36591?** Medium severity, with a CVSS score of 4.4, published 16 September 2026.

**Which products and versions are affected?** Dell Elastic Cloud Storage 3.8.1.0 through 3.8.1.7; Dell ObjectScale prior to 4.4.0.0.

**Is there a fix for CVE-2025-36591?** 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-2025-36591 attacked?** It is attacked with local access.

**Am I affected by CVE-2025-36591?** Check whether you run Dell Elastic Cloud Storage or Dell ObjectScale 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

The vulnerability is a use of a broken or risky cryptographic algorithm in Dell ECS versions 3.8.1.0 through 3.8.1.7 and Dell ObjectScale versions prior to 4.4.0.0. The attack requires local access and high privilege level on the affected system. Successful exploitation could lead to information disclosure. The fix is available by upgrading to ObjectScale version 4.4.0.0 or later, or ECS version 4.4.0.0 or later.

## Affected products

- Dell Elastic Cloud Storage 3.8.1.0 through 3.8.1.7
- Dell ObjectScale prior to 4.4.0.0

## Timeline

- 2026-09-16: disclosed

## References

- [https://www.dell.com/support/kbdoc/en-in/000505935/dsa-2026-393-security-update-for-dell-objectscale-multiple-vulnerabilities](https://www.dell.com/support/kbdoc/en-in/000505935/dsa-2026-393-security-update-for-dell-objectscale-multiple-vulnerabilities)

## Related threats

- [Dell ObjectScale incorrect permission assignment in OS](https://junglewise.ai/threats/cve-2026-76104-dell-objectscale-incorrect-permission-assignment-in-os)
- [Dell ObjectScale deserialization of untrusted data vulnerability](https://junglewise.ai/threats/cve-2026-70416-dell-objectscale-deserialization-of-untrusted-data-vulnerability)
- [Dell ECS and ObjectScale privilege escalation via improper privilege management](https://junglewise.ai/threats/cve-2026-26947-dell-ecs-and-objectscale-privilege-escalation-via-improper)
- [Dell ObjectScale improper authentication](https://junglewise.ai/threats/cve-2025-43936-dell-objectscale-improper-authentication)
- [Dell ECS and ObjectScale hard-coded credentials](https://junglewise.ai/threats/cve-2026-40636-dell-ecs-and-objectscale-hard-coded-credentials)