CVE-2026-26354Network attack vector

Unauthenticated command execution via stack buffer overflow

Published Apr 22, 2026 · Updated Apr 22, 2026

Stack-based buffer overflow in Dell PowerProtect Data Domain DD OS allows remote attackers to execute arbitrary commands without authentication. Dell identifies the flaw only as a stack-based buffer overflow and does not disclose the affected service, request field, or unsafe copy operation. Network reachability is required, and successful exploitation can compromise confidentiality, integrity, and availability on the appliance.

CVSS severity8.1
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Dell PowerProtect Data Domain DD OS allows remote attackers to execute arbitrary commands without authentication. Dell identifies the flaw only as a stack-based buffer overflow and does not disclose the affected service, request field, or unsafe copy operation. Network reachability is required, and successful exploitation can compromise confidentiality, integrity, and availability on the appliance.

The record

CVE
CVE-2026-26354
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
Unity Technologies
Product
PowerProtect Data Domain
Classifications
CWE-121, CWE-787, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 <7.13.1.60 or later
  3. Affected versionversion=0 <8.3.1.20 or later
  4. Affected versionversion=0 <8.6.1.10, 8.7.0.0 or later

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Unity Technologies · PowerProtect Data Domainversion=0 <2.7.9 with DD OS 8.3.1.30; version=0 <7.13.1.60 or later; version=0 <8.3.1.20 or later; version=0 <8.6.1.10, 8.7.0.0 or later

Published CVSS scores

9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1DellCVSS:3.1/AV:N/AC:H/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
T1210Exploitation of Remote Services

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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