How severe is CVE-2026-40636?

CVE-2026-40636 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40636?

CVE-2026-40636 primarily affects Dell Elastic Cloud Storage. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-40636?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-40636 have an EU (EUVD) identifier?

Yes. CVE-2026-40636 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29046.

When was CVE-2026-40636 published?

CVE-2026-40636 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-40636

CVE-2026-40636 is a critical-severity vulnerability in Dell Elastic Cloud Storage with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29046
Weakness: CWE-798
Affected product: Dell Elastic Cloud Storage
Published: 2026-05-11
Last modified: 2026-06-17

Description

Dell ECS versions 3.8.1.0 through 3.8.1.7 and Dell ObjectScale versions prior to 4.3.0.0, contains a use of hard-coded credentials vulnerability. An unauthenticated attacker with local access could potentially exploit this vulnerability, leading to filesystem access for attacker.

Frequently asked questions

What is CVE-2026-40636?: Dell ECS versions 3.8.1.0 through 3.8.1.7 and Dell ObjectScale versions prior to 4.3.0.0, contains a use of hard-coded credentials vulnerability. An unauthenticated attacker with local access could potentially exploit this vulnerability, leading to filesystem access for attacker.
How severe is CVE-2026-40636?: CVE-2026-40636 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40636?: CVE-2026-40636 primarily affects Dell Elastic Cloud Storage. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-40636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-40636 have an EU (EUVD) identifier?: Yes. CVE-2026-40636 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29046.
When was CVE-2026-40636 published?: CVE-2026-40636 was published on 2026-05-11 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/en-us/000462117/dsa-2026-047-security-update-for-dell-ecs-and-objectscale-multiple-vulnerabilities-1

Affected products (2)

cpe:2.3:a:dell:elastic_cloud_storage:*:*:*:*:*:*:*:*
cpe:2.3:a:dell:objectscale:*:*:*:*:*:*:*:*

More vulnerabilities in Dell Elastic Cloud Storage

CVE-2017-8021 — Critical (CVSS 9.8): EMC Elastic Cloud Storage (ECS) before 3.1 is affected by an undocumented account vulnerability that could potentially…
CVE-2026-22273 — High (CVSS 8.8): Dell ECS, versions 3.8.1.0 through 3.8.1.7, and Dell ObjectScale versions prior to 4.2.0.0, contains an Use of Default…
CVE-2025-26476 — High (CVSS 8.4): Dell ECS versions prior to 3.8.1.5/ ObjectScale version 4.0.0.0, contain a Use of Hard-coded Cryptographic Key…
CVE-2024-51540 — High (CVSS 8.1): Dell ECS, versions prior to 3.8.1.3 contains an arithmetic overflow vulnerability exists in retention period handling…
CVE-2026-28261 — High (CVSS 7.8): Dell Elastic Cloud Storage, version 3.8.1.7 and prior, and Dell ObjectScale, versions prior to 4.1.0.3 and version…
CVE-2026-22271 — High (CVSS 7.5): Dell ECS, versions 3.8.1.0 through 3.8.1.7, and Dell ObjectScale versions prior to 4.2.0.0, contains a Cleartext…

All CVEs affecting Dell Elastic Cloud Storage →

Other CWE-798 (Use of Hard-coded Credentials) vulnerabilities

CVE-2026-13768 — Critical (CVSS 10.0): Gardyn devices expose a privileged iothubowner key. Access to this key will allow a malicious user to invoke an IoTHub…
CVE-2026-45631 — Critical (CVSS 10.0): Dokploy is a free, self-hostable Platform as a Service (PaaS). From 0.27.0 to before 0.29.3, a hardcoded…
CVE-2026-22769 — Critical (CVSS 10.0): Dell RecoverPoint for Virtual Machines, versions prior to 6.0.3.1 HF1, contain a hardcoded credential vulnerability.…
CVE-2025-42890 — Critical (CVSS 10.0): SQL Anywhere Monitor (Non-GUI) baked credentials into the code,exposing the resources or functionality to unintended…
CVE-2025-7503 — Critical (CVSS 10.0): An OEM IP camera manufactured by Shenzhen Liandian Communication Technology LTD exposes a Telnet service (port 23) with…
CVE-2025-20309 — Critical (CVSS 10.0): A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…

Browse all CWE-798 (Use of Hard-coded Credentials) vulnerabilities →