CVE-2018-11052: Dell EMC ECS versions 3.2.0.0 and 3.2.0.1 contain an authentication bypass vulnerability

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-11052 is a critical-severity flaw (CVSS 9.8) affecting elastic cloud storage. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Dell EMC ECS versions 3.2.0.0 and 3.2.0.1 contain an authentication bypass vulnerability. A remote unauthenticated attacker could exploit this vulnerability to read and modify S3 objects by supplying specially crafted S3 requests.

Why this priority

Critical severity
EPSS top 9%: very likely to be exploited
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.0% (top 9%)
CISA exploited list	No
Weakness	CWE-287
Published	2018-07-03
Last modified	2026-06-17

Publisher (CNA): Dell · Vendor: dellemc

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-07-03 17:29 UTCPublished CVE record published
2026-06-17 01:35 UTCUpdated Record last modified

dellemc elastic cloud storage DOWNGRADE

Affected: 3.2.0.0 · 3.2.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.0.0

1. Check installed version

apt-cache policy elastic-cloud-storage || rpm -q elastic-cloud-storage || elastic-cloud-storage --version

2. No fixed release: DOWNGRADE to a release before 3.2.0.0 (Debian / Ubuntu)

apt-cache madison elastic-cloud-storage sudo apt install elastic-cloud-storage=<VERSION_BEFORE_3.2.0.0> sudo apt-mark hold elastic-cloud-storage

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list elastic-cloud-storage sudo dnf downgrade elastic-cloud-storage-<VERSION_BEFORE_3.2.0.0> sudo dnf versionlock add elastic-cloud-storage

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-11052?

elastic cloud storage: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-11052 being exploited?

CVE-2018-11052 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-11052 affect?

CVE-2018-11052 affects elastic cloud storage. Severity is critical (CVSS 9.8). Dell EMC ECS versions 3.2.0.0 and 3.2.0.1 contain an authentication bypass vulnerability. A remote unauthenticated attacker could exploit this vulnerability to read and modify S3 objects by supplying specially crafted S3 requests.

How urgent is CVE-2018-11052?

Priority 62/100. Critical severity; EPSS top 9%: very likely to be exploited; Remotely exploitable, no login, no user action

Software pages

Dell vulnerabilities

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References

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