CVE-2026-23776Network attack vector

Authenticated privilege escalation via improper certificate validation

Published Apr 17, 2026 · Updated Apr 17, 2026

Improper certificate validation in Dell PowerProtect Data Domain allows remote authenticated users to elevate privileges via certificate login. The certificate-based login path does not properly validate presented certificates; Dell has not disclosed the failed check or code locus. Low-privileged network access is required, and successful exploitation elevates privileges on the backup storage system.

CVSS severity7.2
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Dell PowerProtect Data Domain allows remote authenticated users to elevate privileges via certificate login. The certificate-based login path does not properly validate presented certificates; Dell has not disclosed the failed check or code locus. Low-privileged network access is required, and successful exploitation elevates privileges on the backup storage system.

The record

CVE
CVE-2026-23776
Published
Apr 17, 2026
Updated
Apr 17, 2026
Vendor
Dell Technologies
Product
PowerProtect Data Domain
Classifications
CWE-295, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2026Record 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=0 <2.7.9 with DD OS 8.3.1.30
  2. Affected versionversion=0 <7.13.1.70 or later
  3. Affected versionversion=0 <8.3.1.30 or later
  4. Affected versionversion=0 <8.6.0.0 or later

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dell Technologies · PowerProtect Data Domainversion=0 <2.7.9 with DD OS 8.3.1.30; version=0 <7.13.1.70 or later; version=0 <8.3.1.30 or later; version=0 <8.6.0.0 or later

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2Dell TechnologiesCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1068Exploitation for Privilege Escalation

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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