CVE-2025-43727Network attack vector

Unauthenticated data disclosure via REST API authentication flaw

Published Oct 7, 2025 · Updated Oct 7, 2025

Authentication failure in the Dell PowerProtect Data Domain REST API allows remote attackers to gain unauthorized access to protected data. Dell has not published which authentication algorithm or REST API operation is implemented incorrectly, nor how crafted requests trigger the failure. Unauthenticated reachability affects Feature Release 7.7.1.0 and later before 8.3.0.10, LTS2024 7.13.1.0 and later before 7.13.1.30, and LTS2023 7.10.1.0 and later before 7.10.1.60; reported impact is limited to confidentiality.

CVSS severity7.5
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication failure in the Dell PowerProtect Data Domain REST API allows remote attackers to gain unauthorized access to protected data. Dell has not published which authentication algorithm or REST API operation is implemented incorrectly, nor how crafted requests trigger the failure. Unauthenticated reachability affects Feature Release 7.7.1.0 and later before 8.3.0.10, LTS2024 7.13.1.0 and later before 7.13.1.30, and LTS2023 7.10.1.0 and later before 7.10.1.60; reported impact is limited to confidentiality.

The record

CVE
CVE-2025-43727
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
Dell Technologies
Product
PowerProtect Data Domain
Classifications
CWE-303, CAPEC-90, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.10.1.0 <7.10.1.60
  2. Affected versionversion=7.13.1.0 <7.13.1.30
  3. Affected versionversion=7.7.1.0 <8.3.0.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Dell Technologies · PowerProtect Data Domainversion=7.10.1.0 <7.10.1.60; version=7.13.1.0 <7.13.1.30; version=7.7.1.0 <8.3.0.10

Published CVSS scores

7.5Dell TechnologiesCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-303Incorrect Implementation of Authentication Algorithm
CAPEC-90Reflection Attack in Authentication Protocol
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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